Why not? Because a piece of paper says he’s not allowed to? Pieces of paper say a lot of things; sometimes they’re followed, sometimes not.
John Adams might agree with you though. He said the constitution was intended for a moral (and religious) people. Maybe Americans are simply out of virtue, and don't deserve the Constitution anymore?
Sounds pretty expensive.
Nayib Bukele is limited to one term by the Salvadoran constitution. He’s currently on his second. Turns out that if nobody stops you, you can just do whatever you want.
No it isn't. People have power because people with guns follow their orders, not because of what a piece of paper says.