I'm very progressive in some ways but I do think progressives make this particular problem worse, often with good intentions. Both sides are equally NIMBY but liberals also have:

- More environmental regulations that can be used by NIMBY.

- Attempts to solve the using various forms of rent control, which make it worse.

- Related: conservatives favor less regulation, which leads to more construction.

- Liberals hate for (or at least distrust of) landlords. Some of this is well-deserved but I've seen liberals oppose good policies because it will "help landlords".

Lastly, home owners--including liberals--like to see the value of their property go up and tend to favor policies that make it so. It would be nice if we could get people to stop looking at their homes as financial investments.

And despite saying that they're the party of YIMBY, in practice we can clearly see that Democrats simply aren't. They'll say that they allowed ADUs, but then Dallas will come along and build 10,000 homes in the time it took Seattle to simply debate ADUs.

At some point you have to look at the actual results of policy.