Ok, this law is basically removing net neutrality and creating a tax for every consumer in case you steal some intellectual property.
You can read the proposition; wikipedia has linked it in the main page now. This proposition has clear purposes to benefit certain economic lobbies and not the people.
First this proposition aims to reduce intellectual property piracy of digitalized works. It aims to do this attacking the populace instead of the stealers. This proposition is based just in big companies claiming they are losing their money thanks to piracy. This proposition COMPLETELY ignored several studies, even one financed by the EU that demonstrated how piracy and the possibility of having some cultural work for free isn't affecting a bit those sales, and even this possibility can raise sales as it happens with video games, according with that study made by the EU they are ignoring.
We can conclude that we are talking about a law, made by conservative parties, to benefit those big economical powers that aren't unable to adapt their business to the internet. Think about big newspapers that are partial towards some parties, big discographics or TV broadcasters that are big enough to affect the public image of some parties. All of them are losing money because they couldn't effectively adapt themselves to the internet, and some new companies are doing it better than them. So this proposition is, apart from a tool to benefit political interests that aren't the same ones of the population ones, a tool to eliminate competence for big companies.
In Spain, the measures were extremely focused on destroying new blogs and digital newspapers that were mostly against the government policies. It was a way to shut down the new companies and to let the big media which has a lot of connections with big parties rule over the competence.
The measure heavily backfired, because big companies didn't see any improvement on their profits, that's because people are accustomed to new ways of consuming news, TV shows, music and movies. The people kept on focusing in consuming these products in the same way as before, so the big companies kept losing money for the same reason as before, because they don't know how to adapt the company to the new conditions of the market. Spain closed all piracy websites? People will find other ones from other countries, or buy Netflix or HBO, newspapers won't let them link news or read news? Ok, people won't enter and will find other news sources, making even worse the fake news effect and the social media news plague.
So what's the next step? Cutting the way out. Erasing net neutrality to force the users to enter that webs that the ISP wants you to enter, probably economic allies, and other big companies. ISP could reduce your bandwidth making it almost impossible to access a web, creating this way a hellish trap for the internet users.
This is not a conspiracy, is just old people not knowing what internet is or what it means, trying to bring benefit to the companies that "always were there" just to benefit themselves under the false believe that if these companies fall because they cannot adapt to todays world the country will fall too.