Homeownership rates are not materially lower than before. Page 5 for the data, page 13 for the formula.

https://www.census.gov/housing/hvs/files/currenthvspress.pdf

I would bet most, if not almost all homes, are sold to buyers who will occupy them.

This graph goes further back:

https://fred.stlouisfed.org/series/RHORUSQ156N

More info:

https://en.wikipedia.org/wiki/Homeownership_in_the_United_St...