While it’s true the vast majority are not buying minivans, the vast majority of US citizens also live outside of cities. Thus making minivans and other, similar cars uneconomical outside of large family units.

Additionally, if the majority of Americans are buying “comically large cars”, then most are equally protected and fewer are at risk. And in my lower income neck of the woods large cars are hardly the status quo. Maybe in cities, where people make more on average and live above their means people can get large SUVs and such, but around here the biggest we got is trucks and that’s typically for work, so not overly common on the roads outside of work hours.