As to the third point: maybe because they don't have the same opinion of her that you do. "Vile," "evil," and "witch" are all subjective labels, they aren't themselves facts. Others who view the same facts may very well draw different conclusions than you. And apparently they do; which is a fact and one you don't seem to be coming to terms with.
More broadly, and not just you, and not just to Trumpettes, there is an unfortunate strain in much right of center political thinking that believes that their subjective worldview is necessarily the only objective view and so of course the rest of the world must secretly believe the same, and would act accordingly, if only we could rid ourselves of the small band of elite liberal oppressors. Problem is, a lot of the rest of the world doesn't share that identical set of beliefs secretly or otherwise. Thus, a goodly portion of the rest of the world can still be rational and yet not share your subjective conclusions about someone like Clinton. For better or for worse, those are the facts, and declaiming that everyone who doesn't view her like you do is irrational doesn't deal with those facts nor does it advance the goal of convincing these other people that your view is the better one.
So the rest of the world can rationalize "a sexual predator enabler" as POTUS? The vile, evil witch who tried to destroy her husbands victims? What the hell kind of world is that? Trump stated from the beginning that if hit, he would hit back twice as hard. His life has pretty much been an open book. He may be crude, rude and boisterous, but he is in the race to win. All the holier-than-thou critics had best not have any skeletons in their closet......and which candidate do you suppose does not? The gloves came off awhile ago, but the anti-Trumps underestimated the enemy. They tried to bully and intimidate. When Trump retaliates, they cry like lost puppies.