Not worth arguing with people like that. I live next door to a Trump supporter that thinks he is smartest person in any room he is in. When I first moved in one first things he mentioned about area was how you can see the Nuclear plant 3 miles away leaking radiation. He was talking about steam from the cooling towers. I tried to set him straight but he heard from one of his CEC buddies that he was right. Funny thing is I was a Nuclear Engineer so I kinda know a bit more than him and I am way smarter too.
And in Trump’s case it is worse cause he has money and all people around him his while life told him he was smart because they wanted something from him.