I have many concerns about the rise of populism in Europe but the (few/very few) good things that might come out of this is that there will finally be (enough?) pressure on the EU to reform.

Despite all their talk about being pro human-rights and pro democracy in practice the voter turnout percentages for the EU elections are extremely low. As an EU citizen I almost never meet someone who's interested or who feel represented by the EU. There's, no doubt, several reasons for it but the biggest one might be that an additional abstraction layer that's cultural too far away from the average voter.

It’s more likely that the rise of the populist right (or left, like Melenchon) will lead to the destruction of the EU. They do not want reform, they want to go back to the fifties.

EU and EC have been made as a resistant to populism by design, the end result is that we citizens can't change anything, and decisions are arbitrarily made behind closed doors.

The amount of layers between your vote, and the elected official that matters is just too big to have any form of accountability, especially when you couple it with national issues.

I'm frankly less concerned about populism, but more concerned about sheer disregard of opinions of citizens.