I'd recommend you take a long hard look around if you think fascism isn't possible in the US. The modern GOP is now predicated on a belief that the last election was stolen, and that they need to steal the next one to compensate. Fascism doesn't require a coup, and it's plausible that US fascism won't use one.
Here, have a podcast about the subject: https://www.iheart.com/podcast/1119-it-could-happen-here-307...