There is no legal mechanism in place to “reclaim” these vehicles and force the owner to sell and redistribute to the poor, but I think you’d find widespread support here for something like that.
So instead they get torched, to send a message. I suspect it’ll get worse in the near future and I wouldn’t recommend buying one today to anyone who values their personal safety.
The point wasn’t to make the showroom work though. It was to make the showroom not work, and fire does that job wonderfully.