This is mixing two questions: whether a system can be elegantly designed and do the job without major market distortion, versus the question of whether various actors will stand in the way to prevent it.

You could say the same thing about zoning. Higher density is better for affordability, but faces opposition from landowning existing residents. Does that make it wrong, or not worth pursuing? No, and that particular movement seems to be getting traction despite the political opposition.

I read "trivially fixable" as "there is an elegant solution to this," not that "it is easy to get it politically passed."