Frank Field is the Labour Party, (i.e. left-wing) Member of Parliament for Birkenhead, in England, which is where I grew up. (Stop me if you've heard this before, but I'm an immigrant myself.) He said recently of Britain's dramatically increased immigration:
"The revolution is on a par with Stalin's forced migration of Ukraine. He set out to transform Ukraine by forcing out the existing population and replacing it with citizens loyal to the Soviet Republic.
"The Ukrainians did not vote for Stalin's brutal policy. Nor have voters here agreed to the transformation of England."
The interesting thing about this is that it's a left-wing MP who's talking like this. Enoch Powell, who was the unofficial opposition to the center-left consensus after his great speech on immigration, was a Conservative.
The Labour Party, for ideological reasons, couldn't speak out against the mass immigration of Indians and Jamaicans, although Harold Wilson, fearful of the electoral consequences of doing nothing about it, actually passed into law an immigration reform act in 1968.
In fact, one reason why Powell's prediction of demographic disaster didn't come true sooner than it did is because the Labour Party, while speaking out against him, had done a good deal of what he asked.
But if a Labour MP is actually saying this publicly, the times have changed. They must have—few Labour MPs of the 50s and 60s would have criticized Stalin, either.