For starters, the fact that nobody can agree on what a “fascist” even is these days. And when you have a generic term like that which essentially boils down to

For starters, the fact that nobody can agree on what a “fascist” even is these days. And when you have a generic term like that which essentially boils down to “people whose opinions I dislike”, then you’re advocating for the blacklisting of arbitrary groups of people. Not going to turn out well, especially when you yourself get included in one of those groups.