Kohl's meeting with Thatcher
Here's an interesting article about how Helmut Kohl, former Chancellor of Germany, tried to work out a plan to reduce Turkish immigration. Among other quotes from a 1982 meeting with Margaret Thatcher is this one:
"Germany doesn't have any problem with Portuguese, Italians and even southeast Asians because these communities are integrating well," according to the British notes of the meeting with Kohl.
"But the Turks were from a very different kind of culture...(West) Germany had integrated 11 million Germans from East European countries. But they were Europeans and didn't represent any problem."
Long before Kohl there was Enoch Powell in England who predicted, with deadly accuracy, the crisis we are in today. Powell was a difficult, not always likable, but always outspoken person. He remained a member of the British Parliament until 1987. There is a long Wikipedia page on him that reveals his wide range of interests, his linguistic genius and his uncompromising nature.
France had Jean Raspail who wrote The Camp of the Saints in 1973, just about the time the French changed their immigration laws, with the result we all know.
Well-known too are Winston Churchill's and Charles de Gaulle's warnings about Islam.
Helmut Kohl was aware of the problems he would face if his words became known, and so the minutes of his meeting with Thatcher were kept secret until now. I believe he would have been more open if he had spoken those words in 1950. But by the 1980's political taboos were changing the nature of public discourse. Soon a majority of Europeans and Americans would react with knee-jerk indignation at the mere mention of immigration restriction or racial differences.