"That is not a strawman. That is literally what the old-school tenant activists in San Francisco say"
The strawman is that you're mischaracterizing the argument and it's commonality. Nobody is arguing that "supply increases prices". They're arguing that gentrification increases prices. And they aren't wrong.
Are there goofballs who argue obviously counterfactual things? I'm sure you can find them. But the serious people have a different argument that you're mischaracterizing here.
If you're disavowing the "more luxury condos make the city more expensive" crowd, there aren't a lot of people left to be called "serious" on the anti-growth side of the house.
The strawman is that you're mischaracterizing the argument and it's commonality. Nobody is arguing that "supply increases prices". They're arguing that gentrification increases prices. And they aren't wrong.
Are there goofballs who argue obviously counterfactual things? I'm sure you can find them. But the serious people have a different argument that you're mischaracterizing here.