The US has many landlocked, east coast, and great lakes city outflows where you can buy property inexpensively. But people tend to not want to raise families or retire needing medical care in declining areas given the choice to leave.
New York city Manhattan has 600k fewer people than 100 years ago and property price to average salary keeps climbing.
I don’t know what the magic is that to expand property ownership. You see cities with thousands of blighted homes and new build suburbs developing 30-90 min away at prices that are a stretch for even well paid middle class jobs.
I think affordable home building and financing could happen somehow but the trend is not going in that direction.