I remember this movie. It was and is powerful. An interesting thing though. Hoover never went hard after the Klan until they insulted the FBI. He was the FBI. He took it personally. He also personally had no use for Blacks at all. Witness the FBI’s extermination campaign against the Black Panthers.
Your point about shooting at crowds is important. I have always beleived that the Kent State murders were the power structure’s way of saying: Enough! If we have to kill our own children to make that point, we will.
They made their point.
It’s hard to know what the military would do in a Trump pogrom. It could split along racial lines. Dangerous. He is popular among many in the ranks, less so with the junior officer corps, maybe even less so with General officers. But they are trained from day one to follow orders.
The National Guards will be less reliable. They are local. It’s a hard thing to fire upon your neighbors. I imagine they would split by individual states.
The cops will, of course, do as they are told. They have always been Authority’s hired thugs.
Of course, I hope none of this will happen. Those happy protesters won’t be smiling if the bullets fly. It is terrifying to be shot at, even if you are trained. If that were to happen, you won’t see many people in the streets. Period.