I mean, everyone does that at some point. Just about no one would want to see their neighborhood turn into Hong Kong's Walled City, even if that meant squeezing in a few people. Different individuals naturally have different red lines - some might not want to see a historic single-family house neighborhood demolished to make apartment buildings. Others might be OK with that, but not want to see their neighborhood park destroyed to make a big box store. Others might be OK with that, but might not want to see the schoolyard where their kids play cut to a fraction of its size to make room for more development.

There seems to be a general lack of empathy when these issues are discussed - if the people who live there find think something is important but I personally don't care about it, then the people who live there are just selfish NIMBY types.