A “Bernie Bro” and a Black Brother brawled at a Sanders rally in Denver Sunday after the white dude allegedly called the black dude a racist for wearing a “Black Guns Matter” t-shirt.

And most of it was caught on tape.

The man in the t-shirt told the media afterward:

“I was recording the event, he walks up and calls me a racist. But I thought, ‘What’s he know about black lives, about discrimination, or, for that matter, the representation of the shirt.’”

The “Bernie Bro” tells CBS4 Denver the t-shirt wearing guy was booing the speech, and he was just trying to get a video of said booing when the t-shirt guy shoved him through the barrier.

CBS4’s camera appears to have picked up the fight already in progress.

The moral of this story: we can’t wait until their generation grows up, has a family of their own, and their children rebel against the parents because this ignorance is just beyond.