It is all about internal enemies. To crush opposition of one EU-state solution pushed by neo-Marxist elites. They are desperate because a wave of counter-revolution is coming.
At this point it isn’t so much about the European mega-state anymore; it is about Europeans tired of watching their countries fill with foreigners, and their elected governments hiding behind the mega-state as the cause of it.
It was very telling when over the past year there were several analyses of the leaders of Western Europe - and how many were childless. There is no future for them personally, so the long-term effects of these policies mean nothing. In fact, they are protected from the immediate effects as well behind their walls...