Do you think one can credibly argue that the existence of golf courses in these cities contributes significantly to the homeless problem?
I don't love the framing here, so I'm going to be upfront and dodge the question.
First, there a lot of room between chronic homelessness, homelessness, housing affordability, and housing attainability (at any reasonable price). For the purposes here (golf course tax-policy) I think it's most important to stay focused on housing attainability, because that's where I think the problematic thrust we may be facing soon comes from. None of this is to say that the other aspects aren't important (they are), but you need to have large numbers of active voters extremely angry with the existing land use system, and that's going to be a result of lack of housing attainability.
My second point of contention would be with "contributes significantly." In a way, the answer is obviously no. Unfortunately, the way forward isn't always going back in time and addressing the systemic problem. Do I think golf courses being converted into housing could effectively change the state of housing attainability and reduce homelessness? Unfortunately, when I look at the amount of high-density housing that can be placed on a golf course, the answer seems to very much be yes. However, here is where I come down hard against those policies: urban open-space is a public good and a finite resource. If there is any solution that we can find before consuming finite, public goods, we should use that other solution.
I think this is why these issue are so pernicious. The blame for how and why we got into this mess are going to be more an more irrelevant to the younger generation. If we can find an effective way forward that preserves golf courses (at reasonable prices!), I fear we're going to need to look to upzoning large area of the urban landscape, and that can be uncomfortable for many folks in this community. I know some folks in the Santa Rosa gov't (where my girlfriend is from) and I know I've changed a mind or two on Bennett Valley golf course, which was potentially up for redevelopment. This is a bipartisan issue for the younger generation. If you can stand CA politics, I would recommend again
Ezra Klein's interview with Scott Wiener which is very much in depth about this issue. If you can't stand CA politics, I would very much recommend
The Strong Towns Podcast, which addresses the same subject from a more conservative (municipal finance) perspective. When increasing density is the issue, the laziest, but easiest solution for many politicians will be to look for the biggest piece of land to build on, with the least amount of outrage. That's unfortunately going to be municipal golf courses, and loss of tax breaks.