I hate that guy, but hate cannot make Me act against My own interests. Well it can a little bit, especially in fast moving situations. But it can’t do it with big decisions like My vote.
It’s not even that. EVERYONE is harmed by fascists. Or, if you’d like to rephrase it this way: EVERYONE is harmed much more by fascists. Either way, in the general, vote blue. In the primaries, vote for the best option. And if you can run for office, run for office.