Some of us do remember the lesson of the Holocaust. But obviously, some don't.
Some of us know Evil when we see it, mrsmith.
Mrs. Smith, you added Muslim Americans. True, persecuting someone purely for religious beliefs is not correct, unless those beliefs are dangerous to society.
Suppose some religion preached child sacrifice? Would persecuting them be indefensible?
Most average Muslims are probably like everybody else. But the radical anti-western Wahhabists and those who think like them should be definitely beyond the pale of any protection. And yet we see no apparent efforts to stop these people here or anywhere in the west.
They could very well become the NAZIs of tomorrow here, as they are the NAZIs of today in other parts of the world.