Aside from the distraction of the author's nuttery, the issue is probably the most salient one for the American middle class over the next century.

Either very strong measures are imposed to limit / de-incentivize real estate speculation and hoarding, or the vast, vast majority of the population is entirely excluded from any kind of property ownership.

And while simplistic 'conspiracy' thinking definitely is of a much lower value than rigorous analysis, there is IMO merit to at least acknowledging that the politically powerful class might overlap substantially with the rentier (property ownership) class and thus resist any such reform taking place. It shouldn't be out of bounds to speculate on the motives of powerful actors, even if it is obviously not the same as making evidence-based claims.