I think the more y'all keep harping on him about it, the more determined he will become to prove you all wrong, and the longer he'll stick with it.
As far as the video ... jeez. The gangsta-thug talk is obnoxious enough as it is, and the rims on that yellow hatch are horrible, but tearing ass up and down a residential street where there are clearly kids on bikes running around is just beyond retarded, regardless of what kind of car they're driving or the race of the people doing the driving. Stupid is stupid, no matter what.