We had a politician in the 60's His name Was Enoch Powell he was like trump, A fear monger and racist of the highest order. At the time we had Immigration into England from India, Africa and the Caribbean. HE tried unsuccessfully, thank goodness, to scare the population and came out with the "there will be rivers of blood".
The Immigrants, I despise that word.
The PEOPLE who we were lucky enough to want to join us in our country have made a fantastic contribution to our society, successfully becoming world class sporting heroes, doctors, lawyers, chefs, scientists of world renown etc etc. and have integrated into British society, of course there are those that have a chip on their shoulder and descend into fractious groups.
I say return America to the Native American Indians, give Australia back to to the Aboriginal tribes and get rid of the racists from their countries.