They get their ideas from people like many of those in the Hollywood community. I specifically remember hearing a rant by Meryl Streep on how people didn't NEED big SUVs and how it angered her to see women driving the big things on errands. I was so surprised that she would bother to notice what the "commoners" drove.
How anyone can be mad because a woman is driving an SUV is beyond me. Streep and these two yahoos in Texas are so misguided and incredibly stupid and uninformed, it truly amazes me. You'll find, however, that most of the hollywood types who bitch about SUVs own at least one themselves.
As for these teen perps, throw the book at them. See how arrogant they are after spending just one week in a state prison.