The EU is hardly a shining beacon of libtard success.
1. Invent a currency out of thin air (and angsty spite towards the US dollar)
2. Fail to create a meaningful economy
3. Bail out countries that fail to control government budgets
4.
5. Profit.
It's proved several things.
It's not a beacon of success in our terms, but in their terms, it proved:
1. You can run a state, indeed an entire continent, on leftist policies for decades on end.
2. While doing that, you can maintain a decent standard of living.
Now, it's not ACTUALLY proof of success, but it's not OH GOD COMPLETE FAILURE either, in the way Zimbabwe or Mexico are.