Caveat: only do this if you're absolutely certain you never want to make a plain HTTP request ever again, because once you're on each browser's HSTS preload list, it takes months to get removed and have the updated list propagated out to browsers. [1]
You can absolutely make seismically safe tall buildings. Even so, building vertically doesn’t mean 50-story skyscrapers. It could be as modest as a three to six-story apartment building, which can nicely coexist in neighborhoods (like they do in Chicago). You could also get away with fourplexes. The point is that it doesn’t have to be JUST single-family homes. And don’t forget that the less densely you build, the less of a tax base you have. Suburbs are absolutely subsidized by cities because there aren’t nearly enough taxpayers to support all of the (aging) infrastructure required to support everyone and their grandma having their own mini estate.
[1] https://www.troyhunt.com/understanding-http-strict-transport...