Good luck trying to convince Europeans to unite under one government after the EU collapses.
I think that's quite a scary prediction. Why do you think that the EU will collapse?
Because it's too damn corrupt, that's why! Why do you think it won't happen?
While I finally acknowledge that the EU has its share of problems, it's wrong to generalize it and write it off as being full of corruption and in danger of collapse. The EU has the backing of a lot of money since it is a trading bloc and with the polarization of nations to either the United States or China there will be more effort at maintain its independence than in the past. Instead of worrying about a post-EU Europe, it would be better to find ways of improving the EU as it is now.
I really think I'm right though.
It sounds like you have strong feelings on this, but you shouldn't go around saying that the EU is going to collapse without any proof. People are just going to think that you are fear-mongering and trying to create a political point and they may ignore you.