Why are you generalising from that video? That is like saying drivers are moronic because some of them are idiot boy racers.
No it's not, because most people who aren't 'boy racers' don't state how cool they are and how they love what they do thus justifying their actions. On the whole, idiot boy racers are put down by other drivers. The same can't be said for idiot cyclists as this thread demonstrates.
He isn't generalising from the video, he is generalising from the responses to the video. Most motorists when presented with an idiot boy racer video will happily call them idiot boy racers rather than praise them for their iresponsibility.
Didn't see this before I replied, but yes. That's exactly what I'm saying.