I think I can agree with the sentiment of the O.P. Our entire American infrastructure is based on oil. Everything we do, down to the smallest things, wastes so darned much. The best we can hope for is to balance out some of the jackholes doing REAL damage.
Where the O.P is mislead is his perception that car free must be equal to OIL-FREE. It's not. Those of us (and I'm NOT including myself here - I'm very car dependant unfortunately) who do not own or use a car are car-free. By definition.
I've also known a few people who *ARE* oil free. They power their homes by batteries driven by an exercise bike and wind, or geothermal. They grow all their own food and are completely off the grid. Impressive, but not the way I want to live.
to the O.P. It's the goal for many of us to be as less of a burden as possible. Soudns like you don't really give a rat's ass, so why are you poisoning student's minds with what you do not beleive?