Ah it's like 1939 never happened.
To be fair though,many European countries' populations are fed up. You probably know it yourself too,but the people are frustrated,they've had enough.
One major problem is immigration and how we've come to the point where locals are being slowly replaced.
The other problem which is linked to the crazy immigration numbers swelling,is the crime rate which has been plaguing all these countries and yet all the Centrist and Leftist governments have been not able to do something about or downright ignoring.
Another big problem is the warhawk policies,like meddling in Libya,Syria,not doing anything about Palestine and mostly about giving everything for Ukraine and risking a world war because Western leaders are obsessed with Russia.
Then you have a lot of people getting frustrated with EU's meddling in their culture and sending orders that are against their way of life. For example LGBT and DEI issues,more "human rights",telling you which politician is good for you and which is not(like what happened with Lepen for example)and of course trying to make societies even more secular and less religious.
Then you have economic policies. I'm not an expert on this by far,but you've seen all the strikes and protests all around Europe.
That's why a lot of people are trying to get back to the nation-states. If anything,politicians have failed us by far. Check Greece and Serbia,politicians are not punished for national disasters. That's why the people have had enough. For decades now,politicians just cover one another and get out of it. We've had politicians who after a big scandal,literally said "I don't see any reason I should resign".