Europe is chock full of old countries. I think some of those, remember the days when they were world powers.
I think creating the United States of Europe would give them back that power that they had.
I don't see any way for the EU to become the world power that so many of the countries want to be. There is still too much bickering between countries, in the EU.
I know there are richer and poorer countries. All together they would be a very large country, that could share those fiscal burdens, as well as defense spending burdens among all the countries of the EU.
I have imagined the 50 US states as individual entities. The only place that takes me is the realization, that we would no longer BE a super power. We would be 50 squabbling miniature countries.
China and Russia are not sitting still. In fact they are moving, slowly, already. China in the South China Sea and Russia in Eastern Europe/Western Russia.
I don't want the world to lose Europe. Our history is there. The EU can't just print money that everyone in the EU uses, unless an EU dollar buys the same amount of stuff, anywhere in the EU.
There would ofc be high rent districts/states and low rent ones, but I think Europe needs to come together, more than they have, to be able to stay being...Europe.
I dunno, with the way the world is moving...I think the EU (whatever they want to call it), needs to be a lot more homogeneous, than they are now, or we will slowly lose those countries.