> Also, uneconomical use of urban land.

Uh, like green spaces? Those aren't economically valuable, but they're immensely valuable to humans.

Not green spaces, as those do provide significant value to humans, and that value does show up economically too, even though we shouldn't value them primarily in that respect.

It's more about people hoarding lots of land for parking, roads for cars that are unsafe for use by non-car users, and then also vertical space above short buildings that goes unused.