Gee, that's funny, because as I pointed out, while Trump condemned violence from both sides in the Charlettesville riots, he didn't invite "Alt-right" or KKK types to the White House.
Whereas Obama DID invite Black Lives Matter leadership wack-jobs who engaged unrelentingly in violent rhetoric against whites and police, BLM leaders who had actually gotten cops killed in multiple cities nationwide over several weeks, to the White House.
That shows pretty clearly what Democrats actually did, and what Trump actually did. And it's the opposite of what you allege.