Also, if you could link more examples, I'd love to see them. I'm amused by the fast talking, but City Cleveland high school or whatever dominates the first few results on YouTube and jumping around, I see only a mild form of it.
EDIT: actually, I just saw that 2 minutes ago someone posted another example! :)
It is a sham. The video is a study in contrast. THAT is what made it effective to expose the absurdity of the "win", and probably why you don't like it.
I notice you called it a "dog whistle" in a different comment, which I resent. That term seems to be a favorite term of the political left synonymous with "this doesn't agree with my worldview so I'm going to cast it as a racist viewpoint to shut down debate. I will insinuate racism where it doesn't exist."