Earlier quoted context omitted.
Except if you have a neighborhood full of nice row houses (almost historic by American standards), friendly local businesses, etc., then the "politics of zoning" by the local residents has tended to the status quo, which they seem to like. In that case, where would you be able to increase construction? People want to live in those nice neighborhoods, not some new high rise in a "redeveloped" area. So the newcomers wi…
I've seen that the frequent opposition to zoning changes protests the replacement of single-family or row houses with "high rises", as you did. Why did you chose to use an extreme as contrast? That's not the only alternative. What about if they are replaced with a low-rise, or a mid-rise? These offer higher density than row houses but without the same visual impact as a high rise. Some in Manhattan love their 5-story…
I'll tell you how the city will densify: very slowly. The 5-story apartment blocks in mission Bay will gentrify in 20-30 years, and by then decay and/or earthquake will take care of the nice neighborhoods we have now.
I'll end with another question: what is so wrong (I know it's unamerican, but I mean logically and morally wrong) with telling rich employees of faraway companies that others are currently living in and enjoying the neighborhoods that they covet, so they shouldn't move there (by upbidding rents and sales) even if their company provides them the transportation (and saying the company is wrong--or misguided if facesaving is required--for doing so)?