Yeah but if you value the cultural diversity of Europe why would you want to see it homogenised under one corporatist banner?

Because we are much weaker as divided nations than we can be together. We collectively hold the weight to compete as a superpower, but individually, no European country does. We end up as vassals of more united regions capable of acting with a single voice.

Why should laws be drafted by completely unknown people in Brussels and applied to everybody?

We should be more involved in European politics, and make some of these decisions with other parts of the continent.

Could we achieve this, and have free movement of people? Yeah, but not under what the E became. It certainly requires that people from poorer countries aren't used as basically scab/cheap labour to undermine pay and conditions of local workers of whatever origin.

This is the default outcome of freedom of movement in a capitalist world. People in poorer places will always seek the opportunity of richer places. How do you think we can prevent it?

UK society

They did fuck all but try and reverse the vote for years, terribly undermining the UK's negotiating position, then ignored the issues voters had thus opening the door for the reform party?

I'm not sure who exactly you're talking about here, our society is divided. We are all "UK society", including those who desired, voted for, and implemented Brexit. The people who said it was a bad idea continued to point out it was a bad idea. Lo and behold, the public now considers it to have been a mistake.

Reform voters are angry about immigration. There isn't much we can do about immigration because our birth rates are too low. In 2042 we will have a third more retirees as a percentage of the population, that number still goes up if we raise the state pension age to 67 and accept 500k net migration long-term. We need workers to pay tax to fund the NHS and pensions, our biggest expenses. Unless they have a solution to this fundamental problem, mass migration is here to stay.