Things like this only will inflame the situation far worse
If the Democrats are serious about healing, then they legitimately have to care about the 74 million Trump supporters.
Most people I know who voted for him are normal, successful people, who just like his policies, ignored his words, and disliked what the left offers.
The fringe element of course fucked up the last few weeks, but the left cannot overreact and go for impeachment. It will only make things worse, and keep "normal" folks against them.
Let him ride out the last week or so and then move on.
Or else the next four years will be worse.