Again, if you try to collapse this down to "leftists" vs "Derek Thompson", you're totally missing the point. Thompson's rhetorical adversary here are "people who believe we shouldn't do the zoning and envelope reforms required to increase the supply of housing", a subset of whom are on the political left and thus in his target audience: his term for them --- fairly applied! --- is "the antitrust left", but you could (like I do) call them "left-NIMBYs" and be in the same rhetorical place.

Most leftists gag over current anti-housing laws (I wish that were true of the right, but right-YIMBYs make up a tiny minority of the political right).