On the other hand, allowing those who can WFH to do so clears up road space so that people who must WFO don't have as much traffic to deal with. When you live in a society like the USA that has already created a car-dominated dystopia, and those cars don't scale for everyone to commute at the same time without massive traffic problems... it does take some of the pressure off the system, and ought to help some of those WFO people's commutes.

I think you're right that public transit won't fare well with WFH. But it was already so bad in the USA I'm not sure it can death spiral much more.