To preserve a culture or a people or a religion, you need to have a certain amount of “unfair” intolerance. It’s ugly. It’s repulsive. But it’s necessary. You can’t just be intolerant to the bad illegal immigrants. You have to be intolerant to all of them. Otherwise, more will come.
Ask people in hundreds of neighborhoods who were tolerant when the first couple of black families moved in. These were good people, good neighbors. We should treat them kindly. But once the neighborhood was seen as open to blacks, more moved in. Cousins and some of the children of those nice parents sometimes weren’t so nice. A decade or two later and the neighborhood is destroyed. I wonder how many of those kind, tolerant whites hiding behind their doors wish that they had been a little less tolerant years before?