Earlier quoted context omitted.
> A land value tax would incentivize residential landowners to build more units which provides more supply and would lower rents Zoning usually dictates what's allowed and is indifferent to tax rates
Exclusionary zoning exists because of NIMBYism. NIMBYism exists because of the financial incentive to raise land values. That financial incentive exists because of a lack of taxation on land value.
All zoning is exclusionary to my knowledge. That's the entire point. It's not necessary but it exists because it exists. And, it's sticky. It was established most likely when the entire city was raw land and undeveloped; so it served as a plan for development. There was no NIMBY because people were building their BY. Because there was a plan, you could decide where you wanted to build that BY.
Once you have developed the land, raised family, lived in a house for decade(s), and the city around you develops and changes. Now, your property maybe better utilized as a multifamily complex or a nuclear reactor, or anything really. But, it's your home and you shouldn't be taxed out of it. Rezoning as a process is may difficult and probably should be. There's a lot of stakeholders/neighbors who are impacted by a change. They should have some say. It just so happens that those people who bought a single family house in a single family neighborhood tend to prefer it to stay that way so they get called NIMBY but it's a completely rational perspective to have if you were in their shoes. Thus, an introduction of this tax only serves to displace the current owners who can not afford the new tax bill and does nothing to change the actual zoning. So the result is, richer people with bigger tax-bill budgets move in and your even further into the NIMBYism trap not even realizing you're in a zoning trap.
If you open up the zoning (and perhaps the building restrictions), the best and highest uses can actually prevail.