I've seen die hard Trump supporters who were pissed off at the rioting in the Capitol Building. Maybe it's somewhat rare, but it does happen. There are still principled Republicans out there, just darn few who are politicians.
Uncivil Law over on Youtube has a whole series on going over the indictments of Capitol rioters. He's up to 55 videos now devoted to it, and he is *staunchly* conservative, but just happens to believe in law and order. Check it out when you have a chance, some of them are hilarious concerning how some of those dip-nobs got caught. Others are kinda standard, but I've very much enjoyed the whole series. The 55th video in particular is a bit long, but he goes into the filings that idiot made (sovereign citizen garbage) and it's pretty funny to listen to.
Direct link to the video.
And yes, that's one guy, so your point about overlap still stands, but he's at least got a few tens of thousands of subscribers, so maybe there's some hope.