It's because those who applauded it or condoned it while it was sticking it to their "enemies" are afraid the beast will now turn on them.
As much as I would love to have their fears realized after the crap they foisted with glee on the public, I'd like to live in the United States, thank you.
I think at the core that is what most Trump supporters want. We don’t want to live in Obama/Clinton/Sanders Noe-Facist “utopia”.
Just leave us the hell alone.