Supply and demand doesn't solve the problem ww how will demand reduce if no immigrants currently here have to leave?
I think it's an interesting window into the differences between how remainers and leavers see things that the issue of whether EU nationals who are living in the UK will have to leave is almost only ever brought up by remain voters. All the polls show that almost no-one wants this, and that the difference between leave and remain voters on this is tiny.
I think many leave voters want the country to be able to control immigration in the future and I think some remain voters find this hard to grasp, which I find hard to understand.
The studies into effects of immigration on wages have not shown no effect, they have shown a small effect. If the country has no control over immigration levels from the EU, then it will not be able to take any action if these effects start to increase, which given the huge uncertainties both in the EU and elsewhere, is not a completely impossible scenario.
I think very, very few leave voters want or expect any EU nationals to leave the country. I think people want to ensure that the country can respond in the future to ensure the problems with supply and demand don't have a detrimental effect on those with the lowest income in the future.