Are you forgetting the FBI research that showed quite clearly that immigrants had lower rates of criminality than the general population?  If I understand averages, the per capita rate of violent crime would in theory increase, if the number of immigrants within the U.S. were significantly reduced.  Or maybe that research has been debunked, and I didn't get the memo?

But regardless, we actually have an astonishingly high degree of tolerance for violence in the U.S. What we lack, and crave, are sufficient opportunities for pushing around brown people as we'd like, under cover of dehumanizing (and unconstitutional) laws. This administration apparently seeks te remedy that deficiency.  I am sorry you are so cheered by the prospect.