1. He has 0 compunctions about saying or doing anything to get what he wants

2. The most heinous of acts require a shameless psychopath to perpetrate

The exact thing that makes him such a clown is what makes him dangerous. Historically fascists started the same way: laughed at and mocked for being so absurd.

I'm not saying he's guaranteed to be the next Hitler, I'm just saying that being a buffoon does not make someone harmless. Psychopaths are dangerous. Psychopaths in power doubly so.