Steve I would not argue with your suppositions, but I would take issue on one point. Immigration has been a fact of life in the UK for many decades and has presented no real problems. In fact in the 50's immigration was encouraged from the West Indies to swell the labour force. Modern Immigration is now on a scale that impacts the low skilled. Surplus labour creates low wages and zero hours contracts. This is one of the many drawbacks of capitalism. Both Labour and Conservatives could have legislated against the more severe impact of these realities but chose not to. I wonder why not? It was also labour that ceased to keep checks on aliens departing the UK, as a result thousands exist illegally under the radar further depressing unskilled wages. Trying to explain the loss of the referendum on a minority racist,xenophobic ignoramuses voting is insulting all those that voted for other reasons. When are you going to accept you lost. I am surprised you do not blame it on Putin as well.
There is yet another problem in Europe:
Yanis Varoufakis The Euro Has Never Been More Problematic 16th November 2018