And when it comes to single-family housing, I think a Socialist future would come with a significant drive for increased density anyways - we’re going to be bulldozing white neighborhoods anyways to build denser housing, leaving plenty of room for indigenous people.

Not only is building upwards is totally doable, it’s already been done for at least decades. Despite a high density population, Hong Kong is 3/4 lush nature. Some of it protected too. They achieve that by living in many skyscrapers.

Tangent: Although there’s an issue of air-conditioning for all the rising heat in skyscrapers, China developed this new metal alloy that cools down air without heating up the atmosphere. It may be able to cool entire buildings. (One can hope this technology can end up being applied to refrigerators.)

“The system works by harnessing the temperature-changing properties of nickel-titanium alloys when compressed, a process known as the elastocaloric effect. The device can cool a room to a comfortable 21-22°C within 15 minutes, even when outdoor temperatures reach 30°C.”