LONDON — The Czech president has called Muslim immigrants criminals. The head of Poland’s governing party has said refugees are riddled with disease. The leader of Hungary has described migrants as a poison.

This week, Austria’s new far-right interior minister suggested “concentrating” migrants in asylum centers — with all its obvious and odious echoes of World War II.

So when President Trump said he did not want immigrants from “shithole” countries, there was ringing silence across broad parts of the European Union, especially in the east, and certainly no chorus of condemnation.

In fact, some analysts saw the remarks as fitting a pattern of crude, dehumanizing and racist language to describe migrants and asylum seekers that has steadily edged its way into the mainstream. Coming from the White House, such words may be taken by some as a broader signal that racism is now an acceptable part of political discourse.