Trump has 2 weeks left. If they do what you suggest, they will embitter a lot of folks on the Right even more than they are doing now.
But, hey, part of me almost wants them to be that stupid.
But Trump is still a threat to the establishment. They will want to hurt and discredit him as much as possible. I think they believe removing him will do it. But to remove a sitting POTUS for having a rally in DC to show his support during a contested election, would be a bold move for sure. If the last 4 years have shown us anything, it’s that they do not fear us. They only fear Trump.