I don't see how this is a story about genetic superiority. He didn't say that.
I do wonder if someone said something rude to him that set him off.
I spent a little time in NYC as a toddler, but from watching TV, this seems to be fairly typical behavior for New Yorkers.
Well, that's a bit of an exaggeration.
I don't think the big guy should have clobbered him. He did bump into one of the much taller men there, and technically, that was an assault. The guy who wrestled him to the ground could have gone to jail for it. The man could have seen if he was a real threat before doing that. If he were waving his fists around or if he picked up an object, that course of action would have made more sense. It's floating around on the Internet, too. The women who worked there told him he had to go. After that, he walked right out the door. That's what they should have done when he started his rant.
The rest of the video talks about women having contempt for shorter men. It's probably true of some women, and they don't get the backlash against them that men would for similar comments about women's features.
A man his size could go somewhere like the Philippines and be about normal height and find a woman who is 4 foot eleven inches tall. It's all relative.