It's what a lot of people do, e.g. some rightwing dumbass dies, someone celebrates, and another rightwing dumbass sees a few peoplecelebrating, maybe they can see these people are left/maybe they assume, and they conclude "See, the left are celebrating, they're all evil!".
"We" vs "Fascists". Wow.
Reading your final statement "the center is okay with fascists' makes me think maybe you are a troll farm member trying to stir up anger and division.
TIL mass homicidal actions are innocent
"As for the center, they're ok with fascism which makes them fascists."
one could argue that since you have espoused such radically leftist policies that you have then alienated and abandoned a huge swath of the (also now apparently "fascist") sensible moderates and centrists. losing what was, until recently, a clear political advantage. you created the conditions necessary for these center-left, center, and right wing fascists to acquire power.
since you are perfectly ok with concretely aiding and abetting fascists, by your style of logic, you're a "fascist" then too.
so perhaps one might suggest, in the alternative, to please first carefully check the definition of words like "fascist" [1] before throwing it around loosely. and if you must use it as a slur, do so correctly and judiciously at something vaguely defensible. if you go around calling everybody and everything you don't like "fascist", it becomes more difficult to understand what you actually mean. and then what name do you call the "real-evil-actual-facsist-fascists"?
simply screaming insults at super-majority swaths of the population isn't really a viable path toward making the world a better place.