I think the direction goes the other way, people are NIMBYs so they come up with reasons to justify why it's OK to block other people from living close to them.

The idea "oh but a richer person than me benefits" becomes the reason for blocking housing, eliding the fact that a poorer person benefits, the true thing the NIMBYs try to prevent.

At least, that's true in my area. People that already have housing, are comfortable, start to rail against all this economic growth and say that we should block all change to buildings to prevent it.

Anybody who is actually serious about providing more opportunity to those with less realized that we need more housing, where the jobs are. It's the homeowners and well-established that pursue degrowth and austerity.

When they build apartments to increase the density the prices don't go down on the dense units. The builder sets the price and he is his own competition because an appraisal requires just 3 comps. He has 250 comps in his pocket because he built and set their price.

The only thing it does to be anti "NIMBY" is aid in unchecked price hikes on "low cost" high density housing that none of us can afford.