"How can so many people not understand that neuther Trump not Musk support democracy?"

What you're missing is that "so many people" just do not care about democracy. They literally - and, yes, I literally mean literally - worship trump. He's all that matters. It is a massive cult.

"Do they really want the USA to become a Putin-esque staet?" Simple answer: yes. Complicated answer: yes. David Frum, years ago now: "Russia is the White Supremacists' Israel."