One thing people are forgetting is that the protestor was trying to disrupt the rally by shouting over Trump. This didn't deserve a punch in the face, but I don't have a great deal of sympathy for a guy with a big mouth who doesn't want to allow Trump his right to speak at his own rally. That isn't right any more than the old guy who punched him in the face.
But, the video showed the young black man, along with a couple of others, being peacefully escorted out of the building.
There was no reason for the assault. Shoot, they were almost out the door when the attack happened.
Why does his race matter to you? Maybe he was gay too. Or a Muslim. Or transgendered. That's just weird. No, he didn't deserve a punch, but deserving has nothing to do with it. When you start shit, shit happens.
His race does kinda matter here, because after the young black man was punched by the old white dude, it was the black man who was put in handcuffs.
Nothing happened to the white dude until the video went viral on the internet. It was only because that video was seen by people that the cops decided to go after him.
If the video hadn't existed? That white dude would still be free and not up on charges.