We have giant mostly empty office buildings which could be converted into mostly apartments, with even make shift permitted commercial zones for basically street vendor / convention booth style shops every 10 floors.
Instead it apparently makes more sense to not do this because it makes more sense to keep them empty, heated and lit 24/7, as basically a way to prop up the retail property market.
Capitalism is a farce, and it has already doomed us all: we have now breached the 1.5 C warming barrier, even more rapidly than most of the worst case scenarios predicted. Permafrost in Siberia and Northern Canada is already thawing and releasing methane.
Enjoy the collapse of human civilization in your own lifetime as people and governments continue to squabble and combat each other over scarcer and scarcer resources as our entire way of life becomes too expensive to maintain.