People that romanticize civil wars and revolutions often hate that movie. But that’s exactly the kind of person it was made for. Radical politics don’t accomplish all that much other than getting a lot of people killed.
It’s just not a very good movie, IMO. Pacing is bad, and they bent over backwards trying to not offend people. Some context or lore would’ve made the movie more interesting. I understand why they did this, but it doesn’t make for a good movie. A ton of other movies have done what they were trying to accomplish much better (albeit, in different settings than the modern U.S.); The Good, The Bad, and The Ugly is one of my favorites.
The point is that when violence starts, the politics don’t matter anymore. Whoever has the better army wins, there is nothing else other than that. Politics can lead to a war but once a war starts, the politics don’t really matter anymore. It’s just a lot of death and suffering until one side comes out on top. Which is why radical violent movements are really stupid.