I have a few thoughts after reading the story and watching the videos.
1st. Nobody in this video had any credible martial arts skills, it was 4 amateurs, although the victim seemed to have the ability to move decently.
2nd. The "victim" yelled at the attackers after they had yelled at him, escalating the situation and causing them to stop and turn their truck around and come back. He is not an innocent victim, he chose to verbally strike back, and I do not blame him because I would have done the same thing... although I have trained extensively for those types of scenarios, it appears he has not.. not a briliant move on his part.
3rd. The attackers knew they wanted to clinch and take the bigger victim down. That was the only smart thing I saw them do in the scenario. For people training multiple attacker scenarios, this is the worst case scenario. If you go down your dead meat against multiple opponents, for the most part. "smart" group attackers will surround you and attack from behind and take you down immediately, they do not want to chance a screw up. These guys were amateurs but they did know to take the guy down.
4th. The attackers were pretty much all talk, despite their horrible slurs and taunts they got the victim down and proceeded to short punch him in fairly durable areas. A real bad *** would have broken his legs, curb kicked his head, and demolished the corpse.
5th. The guy had plenty of opportunity as was mentioned above to single out and use his reach and size advantage on his opponents, he either did not have knowledge on what to do, did not have the fortitude to do what was necessary, or did not take this as a legitimate threat on his life.
6th. the guy was keeping distance well, but with absolutely no gameplan. He was not trying to get away from the opponents, but he was not using his strategic advantages when they appeared. This is bad news, all this will do is get you tired... read my signature, you get tired and you die.
Translation to all my bullcrap here?.....this guy is damn lucky that he got away from this incident with a few stiches and hurt feelings. If these hoodlums had been efficient at all this guy would be needing serious surgeries to repair the damage...
You could go on and on about different things in this video. But it reminded me more of a high school amateur hour quad brawl, then hard core white supremacists and a blakc tough guy going at it.