What you say makes a lot of sense. My understanding of why people moved out of the urban core in the first place was "white flight". People are moving back now,

What you say makes a lot of sense. My understanding of why people moved out of the urban core in the first place was "white flight". People are moving back now, and the people living in the cities, typically the wealthier inhabitants, resist building any tall residential buildings, though they are happy to build upscale homes and businesses that kick out the poor.