The ideal is a totally free movement of people. I like to keep that ideal in mind as I live my life.

(As far as people going back to where they came from, this is totally unworkable for so many reasons)

So you are quite happy to deprive those other countries of their skilled and intelligent people in order to shore up the increasingly creaky UK? Like the NHS that seems to be happier to import ready trained doctors and nurses from relatively poor countries such as the Philippines rather than train its own.

The poor and unskilled migrate because the countries they come from offer fewer opportunities for them and one of the many reasons that those countries are underdeveloped is the brain drain that western countries are the beneficiary of.

...tell that to the indigenous people of my country. Canada would be like it was before the Europeans came over.