And that growth is due to US cities all jumping on single family zoning as method of segregation, post civil rights. If the only thing you can do with a lot is

And that growth is due to US cities all jumping on single family zoning as method of segregation, post civil rights. If the only thing you can do with a lot is build a single house, you make it as large as the market will support to maximize sale price. When only rich people can afford houses in a neighborhood, it becomes white only. Also known as gentrification. I live in a wealthy, 99% white zip code and that’s exactly how it happened.