Comment by jerlam

No, what you said is mostly correct; but I'm mostly talking about not having home prices go down, which is different but related.

There are different kinds of homeowners. There are those who are flipping houses and directly betting that the values go up, which is the crowd that you're describing. But at least in my area of the world, the majority of the anti-housing crowd is just old and is more anti-change than anything else. Even if the value of their home skyrockets even more, they won't sell and move. Their complaints are more about noise, traffic, and "quality of life" than home values.