I'm not fine with it, I've even been homeless before.
With the way things are now, with the system as it is, people need cars to survive. Sometimes for shelter, sometimes for food, and someone's for their job.
You, being a rabid asshole, are mad about this, and think they should be institutionalized, just because they own a car.
The people living in their cars have enough problems without the short-sighted, privileged, judgemental opinions of people like you to tell them they are monsters for trying to stay alive.
You wanna get mad at something? Get mad at the oil industry. Get mad at the auto industry. Get mad at rich assholes or judges who let people get a slap on the wrist for running people over.
But being acting high and mighty over people trying to survive when you don't have to do the same thing makes you a huge prick, and that's something that hurts any good cause you attach yourself to.
So for the sake of the encouragement and people trying to fix the car situation, shut the fuck up, at least till you get therapy.