The reasons have become obvious to everybody

Have they? Not to me and I do not fancy myself as "evolved ahead of the 1940s socialism". Whatever that may mean. I am the working class son of a Polish immigrant. My Dad was a painter and decorator, supported the union all his life and hated both communism and fascism. I think some of that rubbed off on me. I was educated to GCE O level standard, started work at 16, did day release to get my ONC and was accepted on a part time economics degree that was cancelled after 4 weeks. I never bothered after that.

Yet I can see that strong trading partners with no barriers to employment will benefit me, my children and my grandchildren far more than pulling up the drawbridge and going it alone. I know we will never convince you Al but what you spout about only the middle and upper classes wanting to remain is utter nonsense. You could at least have the grace to admit that you just don't want "the influx of Eastern Europeans, and the lawlessness they have bought to towns like Boston" (your words) that you have complained about before.