There’s kindof 2 ways to describe affordable housing though:
1: Affordable given any reasonable person with a reasonable job can afford to live within 15 minutes of their workplace
2: any locality that when you save enough money you can move to and find subsistence wages after moving (gentrification)
Number 1 is basically never coming back unless people spread out far and wide and opportunities are afforded by federal programs that can absorb the losses and round things out for everyone.
Number 2 is basically the only way to become a homeowner anymore