NIMBYism is directly proportionate to the amount of capital you can access. More money, more protectionist of the status quo.
It's the same reason people say you get more conservative politically as you age. When you have nothing, you don't mind if the system changes, and vice versa.
I call it Loughla's Theory of Pulling Up the Ladder.
The only time where this wasn't the case was a brief period where I lived in a dense set of homes near a lake.
As an adult, I have no love for the lifestyle.
I tend to think it's more of a bell curve. The lower classes want more housing. The middle classes are NIMBY because the majority of their net worth is tied to their house value. The upper classes don't care, with rare exceptions for people who don't want their views spoiled.
If you live in a 20,000 sqft. penthouse in Manhattan with a doorman and a private elevator what do you care what they're building or not building at the end of the block? Safe to say it won't be anything that kills your property values. A lot of vocal YIMBYs to be Silicon Valley tech moguls.
Also, the elephant in the room is that a repeat of 2008 (roping in commercial real estate, while we're at it) is not completely out of the question. Anyone with a significant portion of their wealth in real estate at the moment is going to be restless, waiting for the other shoe to drop. That means circling the wagons.
We could have an interesting conversation about how this very well could be true, if you'd like.
In fact, I believe the problem is the inverse of the one you've described (aside from race, which I'm not particularly interested in making people feel bad about) - that there are a lot of people in internet politics who are so caught up with focusing on the image of their political enemies (e.g. affluent housing-as-an-investment NIMBYs a la California) that they lose their imagination for reasonable NIMBYism and start making enemies of reasonable people.
In that environment, a comment like mine might look like "Bizarre NIMBYism (for HN) going on in these comments right now."
It sounds like you are.
The issue, to me, is this idea of viewing "keeping" communities "middle-class" and "nice" through some sort of race/discrimination-agnostic lens, in a country that's historically (within living memory)(of Millennials) done anything but.
Unfortunately, race and racial politics are inextricably linked with housing policy in America. It's impossible to talk about "nice places" without digging into the racialized meaning of "nice", or to talk about "middle-class" places when those encompass everywhere from "shops at Dollar General" areas to "orders Instacart from Whole Foods" areas. And, in terms of "keeping" neighborhood character, it'd be interesting to know the history of the specific neighborhoods you have in mind. "Were they gentrified, or just always inaccessible to marginalized people?" I wonder.
So, sorry, these nebulous harms to "niceness" don't cut it as reasons to forbid development prospective (and, often, current!) residents desire.
>I am not affluent and I have never had an ounce of power to influence anything
I've never met someone who was who'd admit to it. However, giving you the benefit of the doubt: that characterization was not directed solely and expressly at happytoexplain.
So it looks like a constant vortex of contradiction and confusion.
It's why "ratio" is such a big thing on Twitter: ratio of likes to comments, because comments tend to be 'negative' towards the post.
Also, not everyone in the Midwest lives in a McMansion, your snide comments are not helpful. Is it possible that people don't agree with you?
To me, that's more concerning than HNer's not all having a single voice on the broad and complex topic of housing development.