I think the video creator just thought it was weird that the two black woman were making a racial issue out of a boxing match, where the white fighter had knocked out a black fighter...they asked him if he felt racist for doing so...
I think the video creator was just trying to illustrate that some people view everything through the prism of race, whereas others, like him, do not...And according to the response of the white fighter, it seemed he did not view the fight through that racial prism as well...