The funny thing is is that Trump is probably the most hated politician from the standpoint of the establishment (meaning current and former politicians, government, agencies, etc.) that nobody is passing up an opportunity to go after him -- leak conversations, betray his trust, berate everything he says or does, negatively spin all of his actions, etc.
There is no way that you could convince me that outside of maybe one or two cases, if any other president had this kind of collective apparatus working against him, almost every one of them would be candidates for impeachment. It's just that they weren't so despised by everyone.
Now you can rightly bring a lot of that back to Trump himself. He's criticized virtually everyone at some point or another. He's not one of them and doesn't want to play the game the way it's always been played. I'm not arguing whether or not that's good or bad. I'm also not arguing his moral standard (but I do doubt that in reality he's that much worse than other politicians in that regard....he just doesn't give a crap about what he says and does, while many others are so careful to hide their stuff).
I'd like to see the same level of opposition and scrutiny of all of our other past leaders and see how they fared. My suspicion is that it would have turned out similarly. And you can't really use the Clinton case as an example. Sure, the Republicans were after him, there was not the same magnitude of widespread internal (government) and external opposition to him.
Again, Trump has brought much of this upon himself. But there is also a component of deep corruption within the government that he threatens, and I think that is actually the bigger issue here, IMO.