Which Europeans have you "talked" to? Discord and twitter don't count. People moan about the EU like they moan about their own national government.
Opinion polls on actually leaving the EU show a minority in favour. Most Europeans saw Brexit play out and realise sticking the finger up at your neighbours is not a winning strategy.
Brexit was ironically mostly an anti immigration vote. It has thoroughly demolished the involved parties that the one thing promised has not come to pass.
I guess real life doesn't count either? Good that we can rely on HN and Reddit, where the pro-EU sentiment is strong. I just haven't seen that in real life, which is why I suggest maybe it might be particular to Germans and probably Belgians and Dutch.
Where have you lived in the EU? I think that the EU is mostly mediocre rather like our national governments.