By not building homes at anywhere close to the rate of population growth. It's so obvious by looking at the data you'd be gobsmacked anyone is talking about anything else before simply building more houses. Eliminate most zoning, bring in labor from outside the country, train up domestic labor, create incentives for construction and construction tech, so on and so forth.
There simply aren't houses.
Inflation doesn't help, but housing prices have risen way faster than the rate of inflation. So again: find the actual problem and solve it.