Now Trump could turn off Bitcoin's price like a light switch because so much is riding on his personal whims.
Sure. He could try, and maybe he would be successful, depending on whatever policy that he announces or action that he takes. But so what?
It's just a crazy state of the world, that's all. Bitcoin started off as a means of thwarting government control over transactions, and now it's a football in US politics that will live and die by whatever political winds are blowing here.