I don't agree with your analogy.  White supremacists have been an issue in America it's true, but Trumps election has emboldened them to rally in public more often and in greater numbers.  That is what I meant by coming out of their hiding places.   Very few people have suddenly decided to despised the white supremacist "mom".  Most have always despised them but it was a minor issue until they became emboldened and began marching in greater numbers.  Then good people had to respond to their views.