You misunderstand. Most of them aren't specifically concerned with neighborhood character. They are mostly long-term resident homeowners (not landlords) who don't want the hassle and annoyance that comes with higher density. If you want to counteract their efforts then at least understand their motivations instead of treating them like caracitures.
At some point someone with authority just has to draw the line. Those people’s desires to not be hassled is not important, and the need for sufficient housing supply is.