I was actually a supporter of EU Membership until maybe 10 years ago. It made sense.Customs Union , easier trading, more uniform policies, even though I thought EU Farming and Fisheries policy were unfair to the UK and wastful sometimes. Nothing is perfect but I was in .
The change seemed to be with a voracious appetite of the senior few, to absorb more and more Countries as fast as possible, even with very dubious economic status.
The stronger Countries ( if you take the main 10 or so , could subsidise the slightly weaker ones to help them recover and economies would have been on a more equal basis long term.
It is hard enough for us to agree here !,imagine 27 different cultures, economic strengths. religions, national identities, political views,pension rules,lifestyles…trying to agree a common policy. There is not a “one for all” solution.
Forcing austerity on some to try and catch up was unrealistic I think.
I have no desire to see the EU fail but unless they contract or drastically change course , I am pessimistic.