It's not in his nature nor his personal history to just walk away when he has been deliberately harmed. He fights back and he will hit back harder.
He does not believe in turning the other cheek, putting his tail between his legs and slinking off. Losers do that.
Trump is a winner. He won this election fair and square and everybody, including and especially the democRATS, knows that.
He believes in payback. He wants vengeance. And before he leaves town, he will have it. He's taking the whole rotten, corrupt lot down.
He is not leaving town. See my tagline.