Long before Trump late-night comedy was rarely funny. Most of it was womyn's men-hate screed, black guys messin' with the crackers (a derogatory term, btw), or GiBLeTQs watching the straights squirm and titter nervously.
Whoopie Goldberg started that whole upper/downer message shtick, and I have never been a fan of it.
I have seen enough cruelty that I don't find it funny, nor crass abusiveness, nor vocal cues a-la-Carlin replete with profanity. Rather than burn the time, I usually just don't watch. When I can sit through an hour of standup and not crack a smile, it just isn't funny.
Jeff Dunham, and Gabriel "Fluffy" Inglesias are about the only two on 'modern' tv to get a laugh on any consistent basis, aside from the redneck comedy tour.