my own brand of yimbyism at least respects that. there's nothing wrong with quiet neighborhoods and loud neighborhoods. the sort of things i want to allow in neighborhoods like yours are locally-owned corner stores and cafes and wine bars and walkable development like cut-throughs and bikelanes. part of the problem with the urbanism debates is that no one has quite figured out how to allow "the good stuff" while keeping out "the bad stuff" because as soon as you upzone, like, walgreens and gas stations and corporate high rises are expected to start showing up. IMO this is something of a "social technology" problem: if we can't figure out how to allow healthy development without stopping unhealthy development, that's a problem to solve systematically.

the other issue with urbanism debates is that everyone's version of Yimbyism is different and you end up not trusting any of them because some people really DO think that you should shut up and allow high rises. They have a moral reason for that too---because housing really is at a shortage and costs too much and some people getting their fancy neighborhoods while others have access to nothing is sorta unfair. But that position is basically untenable, if you try to enforce it you just make an enemy of everyone. But it seems to me that the happy medium, the "build good stuff and not bad (carefully)", is an everyone-wins situation (except for a few crotchety people I suppose). That goal is to break the equilibrium of "some (established) people get to govern what happens to almost-everybody" and replace it with something more generally democratic, but without letting in all the repugnance of how the free market will build things if you don't govern it at all.

(this is all very idealistic of course. The problem is that a random anti-development suburban neighborhood that likes being that way has no incentive to let anyone change at all, and is probably basically right that the urbanism program doesn't benefit them at all. I imagine that only really systematic way around that is to end up in a higher-trust version of society where towns are mostly nice, instead of mostly not, so that people actually crave this sort of development instead of reacting negatively to it.)

I always find this 'character' argument disingenuous.

The character of the neighbourhood is only invoked for perceived negative externalities. No one complains when the cracked sidewalks get repaved, or fiber internet lines replace slow copper, when increasing affluence mean that houses are better maintained, when a new sewer line allows people to remove septic tanks. That all changes the character of a neighbourhood, but never gets fought.

Go ahead and commit to the bit, lock in on the character in ALL ways: make sure you fight any alteration to any building, any change in the shade of paint should be fought! Your neighbour replacing their front door? Denied! Replacing a concrete driveway with pavers? unacceptable? Replacing incandescent bulbs with LED? Uncharacteristic! Increasing home values changing who can afford to live there? Not acceptable, gotta sell your home for what you paid to maintain the character!

> If someone moves into an area that is zoned for particular types of properties, then new zoning is imposed by outside fiat (not a vote of the people who live there) is not appropriate.

How small are we going to allow the "area" to be defined? Is it one vote per property owner, or one vote per resident? Can we call a block an area? Who decides the arbitrary boundaries? Do people living on the boundary line get to vote for projects in adjacent properties in adjacent jurisdictions?

Just call NIMBYism what it is, selfish justification for control of other people's property. Your position is - explicitly - that other people and property owners should be made less well off for your comfort. "The Character of the Neighbourhood" is a red herring.