Those tweets are a perfect microcosm of who he is: accuse people of something that he has done often himself. And I think he doesn't really recognize it. His filters just do not work. "Gaslighting is what narcissists do," says the guy who spends all day gaslighting people.
This is why he'll keep racing towards the wall. He rationalizes everything he does while pointing fingers at everyone else. He will not even try to look at his actions in the light of his own standards for everyone else. So when he says something so hypocritical, he really doesn't think he's missing the point.