Okay I get it, I was reading the comment in light of the post which talked about "mandatory expensive vehicle in order to be employable because we abandoned trains."

Like, you're right, nobody needs those giant trucks.

But also, even relying on smaller, more efficient POVs as a society is still a bad thing, and being required to buy something in that category is still an injustice that individual people don't have much agency in, at least if they want to be able to get a job without uprooting their lives (and usually living somewhere more expensive in order to have pedestrian access to public transit)