The standard for a public figure is actual malice. Trump is a public figure. He's no different from any other public figure, he isn't entitled to any special protections, and there are lots of public figures with far more serious complaints than him.
Trump threatened to sue Forbes for honestly evaluating his net worth, which is well below his exaggerated claims. Talk about vexatious litigation.
He's a baby. Like the babies on various college campuses, he thinks that his personal anger "triggers" are worthy of tearing down the free speech rights of other people. They aren't. He needs to develop a thicker skin or get the hell out of the public arena.
As if all his quarrels were about hot button irritants?
You have not established that this is the case, and yet you sweep on to a personal attack based on that premise yourself.
I.e. you sound, at best, like you have a hot button irritant problem yourself.
Dealing with foolish behavior without becoming a fool yourself is an art.