Not saying it is perfect, once more.
The referendums were a disgrace, true.
So were they because referendums are often organised, and seen, and used, as votes of confidence for a given government, and not as expressions for the very question.
Find any country, political structure that is pure, of anything.
But still. Here we are. More than 70 years at peace on a continent, something not seen for several centuries before that. The EU project, and structure, and growth, and maturity, is central to that peace.
How factually worse, exactly, have been any EU member, since they joined the Union? How factually better have they been as well?
Pretending that EU members would be better off without the union is a plain, undocumented, geopolitically hostile, lie.