Literally countries with so much surplus land: Canada, Australia etc. have housing crisis where most of the top 10-20% of the population has become speculators in housing and openly NIMBY with no interest in supply side solutions unless forced down.
this isn't a complicated problem, and it's not difficult to build guillotines
In my personal experience, adding density to established neighborhoods improves those neighborhoods' character. Sometimes it gets those afraid of change to move out, improving it even more.
(Don't take this as an attack or critique - genuine curiosity.)
plus "land" doesn't mean anything if you're not near the people and things you want do to, places to work, etc.
do you want to do a 1.5 hour commute and hustle to live around Toronto, or do you want to live in Outer Nowhere, Manitoba, population 400, and where it regularly gets to -40C?