I mean the question is what you want to accomplish with that.
If you want a direct 1 to 1 representation of your positions than you have to represent them by yourself. So direct democracy. And if every vote should matter you could have a veto right for every citizen.
Though there might be problems with the scaling. Like for smaller groups it's quite feasible and should be practiced more, but for larger groups it becomes a technical impossibility to even hear/read/see/... all of the possible opinions.
Like if in a country of millions of people you ask everyone to supply their opinion for a topic and you cut it really short and reduce it to a page or idk a 2 minute video that still amounts to 4000 books with 250 pages or ~4 years of continuous video material. So in order to make an informed decision you would need to know what's up with the rest and everyone would have to go through that process (unless you want a dictator, but even they would have to do that). However to account for every individual voter would require to read, view, listen to all of that and that's borderline impossible. Even if you were a full time politicians with no job, no family, friends or hobbies you'd still not have the time for that. And mind you 1 page or 2 minutes are not a lot, it won't give you a deep insight into that other person's lived reality and why they want things to change or remain the same it likely still only lists what should change or remain the same and hopefully (though not sure) in which direction it should change. However as these things are interconnected radically changing one thing (though listed as preferential) might have consequences that are way less preferential so that also doesn't scale in a linear fashion.
So either way due to the sheer magnitude of information you would be forced to aggregate and group people and positions rather than to account for them individually. Or you know you would have to give up on the idea of large empires and reduce the size of political divisions. Though given that these groups would still be connected through the environment, through trade and through various other means, there might still be a shadow society that exists de facto even if you de jure would have drawn borders.
And if 1 vote can block the entire process then there's a good chance that in a society of millions of people nothing gets done. Which might be ok if there is no urgency and blind activism for the sake of being active might not always be the best idea, so talking things through might not be the worst idea, but often enough there is some sort of urgency, often dramatic urgency and not making a decision is a decision of it's own.
So rather than individual contribution, you often have groups of people, either grouped by interests, positions, by themselves, by those ruling, ... as well as various forms of representatives, like representation as a group, representation by an elected person, representation by a delegate or spokesperson, representation by a party and a shared interest and so on.
And even with representation you could have still a multitude of options, like between a free or an imperative mandate. So has the politician so to say pro cura to speak in your voice, but to formulate ideas of their own or are they bound to the decisions of their base. So if there is a vote on X are they free to pick their side or do they have to vote the way their constituents would have voted? So is it more bottom up or more top down, are politicians experts or spokespeople, are they leaders/rulers or just ministers (assistants).
Or as you've asked about elections in particular. Are these supposed to be 1 time confirmations of the right to rule or are they a continuous process of interaction between the sovereign (the people) and the management that they have hired to do their business (politicians) or does the political supremacy rest with the politicians and the people are just asked to affirm their acceptance of the status quo.
Also some configurations of government favor certain election types and results. Like if you have some sort of antagonistic relation between subgroups of society, idk states don't getting along with each other, parties hating upon each other, class struggle, racism, xenophobia etc or if you are a minority or whatnot, then it might be beneficial to, at least at the outside, present yourself as a monolith, so rather than appearing fractured and brittle you give the impression of a powerful large force that cannot be individually broken apart.
The downside is that over time that expression might not just be on the outside but also on the inside and turn into something authoritarian. Also people aren't a monolith so even if the conflict within isn't outwardly shown it's still there and will factor in the equations just as something that unpredictable and unaccountable, so lots of potential for conflict (or as it might have already been a structure bread in conflict of continuation of conflict).
So these system might favor a winner takes all and a first past the post system. A lot of that was been made obsolete by better technical means to express oneself and a higher general education so that the concept of actual leaders should be made more and more obsolete, still the intend to speak with one voice to amplify a topic might still be of interest and produce such results.
You could also think of a society as more of a cooperative endeavor and think of the population less as different groups in terms of region and whatnot but more in terms of interests and so you might form political parties around different issues, so that you can vote on them by a popular vote where the voting fraction determines the number of seats. I mean the individual contribution is probably still low but every vote increases the fraction and thus the number of seats so maybe it's increases the fraction of the personal vote to 1/100,000 meaning you need 100,000 votes to generate a new seat for a party. That's still not a lot but it's more than having your vote be irrelevant at all if you voted for the party that doesn't win in a 2 party system.
But even with that you have the problem that "the government" is still comprised of the parties or coalitions that can gather a majority of the votes so the influence of the vote might still remain marginal.
Also what do you expect there? Like if you have millions of people and 1 vote per person then the voting power of a single person is actually that small and that's somewhat intentional. Like if you amp up the voice of 1 person the voice of another is drowned. So the only way you can actually increase the voice of the individual voter is by amplyifying their ability to participate. Idk shorter working hours, better access to information, more rights to get involved in the process and more transparent processes.
So in other words making "politics" a bigger part of the voters life.in dictatorial structures that is often requested and often denied by the politicians, but also the more people are kept out of the process and being told how hard that is, the more they also seem to enjoy the "convenience" of not having to deal with that struggle (and as a result being at the mercy of their leaders). So the question is somewhat in terms of how much do you want and can get involved in the political process.
The other problem is about the economic ability to do so, like if you have to work 9to5 in a demanding job while having a family and hobbies you might not have the time to get involved in politics that much and might not even want to compete with the intrigues of the mighty (not all interests are valid or benevolent...). So the first iterations of "democracy" often had the problem that while at least sometimes not explicitly tied to wealth (often they were explicit plutocracies), they nonetheless featured an array of wealthy people because who else had the money to spend a fortune on an election campaign and then work tirelessly in a job without pay or by 4 years or more out of the job and on modest pay to then return to where you started from just older and with an acquired skill set that might not be particularly helpful in a working class job.
While on the other hand having people transition from powerful positions in politics and economics open the door massively for corruption. So just because something is nominally equal doesn't mean it's actually so.
So there are a lot of trade-offs you need to make which might all have their benefits and drawbacks, some are technical necessities while others are by choice or the lack thereof.
TL;DR it's not just about the election process it's also about what you want to accomplish with it and what you're asking for is likely impossible in the first place (at least as of right now).