Two explanations.

1. He's a fucking Nazi.

2. He's a child trapped in an adult's body who thought it would be funny if he stood at a podium with the presidential seal at a presidential inauguration and did back to back Nazi salutes to poke fun at all the lefties calling him and the right Nazis.

..........................................................

If he isn't a fucking Nazi and explanation 2 is the real answer, consider that the richest human in existence, who will serve in an official capacity in the White House for bankrolling the president, is so childlike in his behavior that he would not just consider, but actually do such a thing.

And the more terrifying aspect of this whole thing is that as I've browsed conservative shitholes over the last few days, they aren't even arguing something along the lines of explanation 2. They're insisting it simply didn't happen, despite being extremely obvious on recorded video.

"The Party told you to reject the evidence of your eyes and ears. It was their final, most essential command."