I think like most replies you misunderstand the question, because it is not just "personally hating the guy", but having an extreme disgust at them.
The question is about *over*-reaction, not just reaction, to Trump. The question to me is about this:
* 4 years of pretty much "normal" right-wing presidency, with some changes in intended policy, and small changes in actual policy, and the over-reaction is "like Hitler" and "democracy itself";
* why the gigantic gap between (overrated) "reality" and disproportionately extreme reactions, both personal and political, to Trump?