Some very clever and influential people better start finding and implementing real solutions to housing prices right now. If they don't, expect overwhelming support from Millennials for massive expansions to public housing and rent control, if not even more draconian measures.
2. Only actual Americans can own property in America. Single-fam, multi-fam, land,etc. doesn't matter.
Exactly no one needs to rent houses if mulit-fam exists and actual houses aren't speculative instruments or places where foreign nationals hide their money.