But the french also hate the EU. No more than 25% of them still supports it. If such a referendum were to happen in france, the result for leave would probably be much higher - comment on another question. This seems very unlikely to me but I'm far more familiar with UK than France.
What is the actual support for Frexit?
If it's as high as the comment above asserts, why?
I will try to explain to you the actual situation in France.
Please read this survey TNS Sofres for the 2017 presidential, made in April. In order to be clear, Alain Juppé is from the Republicans party, Marine Le Pen from the Front National (nationalists), François Hollande is from the Socialist party and Jean-Luc Mélenchon from what is refereed to as "divers gauche" (communists + some other left political parties).
A bit less than 26% of the population are supporting the FN (Front national, like UKIP, even worst). For example, they support closing borders, repel immigrates, etc... Needless so they they don't like EU.
On the other 74%, there is 35% support for republicans, 13% for socialists and 12% for communists. The remaining are for ecologists, centre, and do not vote.
But, our president is the least popular since the funding of the 5th Republic, with only 13% people who still trust him (survey TNS Sofres). Even his own party doesn't trust him. So Socialists tends to be for another side, but not republicans, so they will go either for nationalists or for the communists etc... who happens to hate the EU.
In the 35% from Republican, there is only few people who blame the EU for what is happening.
So for me, maybe 51% of the population maximum are not a great fans of the EU, but I don't think they hate it, never heard of that from any of my friends.
Again, those numbers are approximate, but they give you a tendency.
A survey Paris-Match i-Tele, done the 23rd and 34 of June, found that only 2 French over 3 want to stay in the EU.
I see where you found the 26%. In this Sondage Atlantico, only 26% of French people think EU give us more advantages than drawbacks. However, 34% thinks it gives as much advantages than drawbacks and 40% think it gives more drawbacks. That does not mean that hate EU, they just say it is not helping to have EU rules etc... And it is only 40%.
The EU has been built on false promises from the start (socialist Britannic perspective), and by 2005 a majority of people in France rejected the way it was going: 55% voted NO to the ratification of the proposed constitution. The Netherlands voted NO at 62%. The UK and Ireland cancelled their referendums by fear of their population voting NO as well.
The EU needed to overrule the popular vote, so after a period of reflection it proposed a lifting of the same constitution renamed as the Lisbon treaty for the occasion. This treaty would have been rejected again, notably by France, the Netherlands, the UK and Ireland, so pro-EU governments took care of not organizing referendums with the exception of Ireland, where the population rejected the treaty. Ireland was then shamed as a country and pressured into ignoring the vote and organizing a new one one year later. See this.
Many French people from the left still remember this, and as the situation has been worsening ever since they of course have a very bad opinion of the EU. Personally I consider it to be an undemocratic white elephant that ceased to be legitimate in 2008 when the French Assembly and Senate ratified the Lisbon treaty against the will of the people.
Of course, people on the far right have been against the EU from the beginning, so from both left and right it is logical that France would Frexit if a referendum asked this question. It won't happen though, as only the FN would organize such a referendum...
