There are a lot of upsides to being in the EU.
It's so much easier to move aroud, both for short term travel and longer term too. The common currency (at least in most countries) really helps as do things like no roaming charges. If you decide you want to go and look for a job in another country you just do it, no visa hassle or asking permissions.
I was born in the UK and moved to France (long before Brexit thank goodness) it would have been much harder without the EU.
I certainly consider myself a EU citizen, more than British or French (I now have both nationalities).
Of course it's not perfect but getting rid of individual coutry vetoes would help with a lot of things in the wider geopolicital sphere - and has already been done in many domains)
Moving around easily and not having to show your passport is often an argument for the advantages. In reality this is more or less completely insignificant, even if you do travel a lot. Some bureaucratic barriers changing nationalities aren't relevant in contrast to what the EU brings to the table.
Meanwhile, while people can vote for an inhibited parliament, it is far too removed from the average citizen that neither knows the people they are voting for, nor can they probably understand them.
VdL would have never been successful if people understood what she was saying or had said in the past. It is a democratic circus and a clear symptom.