Detroit had tons of extra housing. Why have people people fled to other cities?
There is no easy fast solution to this. Just build more housing will not solve complex issues. Not saying there should not be more construction, though.
Some cities are desirable. Some are not. New York is a city that people all around the world want to live in. Detroit is the opposite.
Detroit’s population has been steadily increasing, and rents there have doubled or tripled in the last 5-10 years.
Because outsourcing and globalization decimated the economy. Now people are going back and doing amazing things. Same think happened in most cities in the Midwest and north Carolina (when textiles and furniture manufacturers left)
But the same thing happened in every downtown core when the federal highway system carved up neighborhoods and companies like IBM moved their headquarters out of new York and into suburban office parks.