Welp, that's the only good reason I can think of.
I can't think of a single person the Dems would have treated like they did Trump, and only elected Republicans joined in on the Dem party; I don't know of many conservative voters who were in the same boat.
I have maybe 25% faith in McCarthy, although November is a long way away. Everyone seems to believe it will be a blowout, and I'm not sure. I take a very long time to make up my mind on a human/politician, and I've watched McCarthy's actions for 20 years, and he's not only not a decent conservative, he's a sorry individual. I'd be willing to bet you he was working to push Trump out; there's a lot of circumstantial evidence to support it.