more units equals more property taxes for the municipality to pay for services, and more people buying stuff and paying sales tax, and use fees like the $11 BART ticket.
Property tax are not supposed to be a profit center, but cover the costs of providing services. Adding more people just increases the costs so it works out a zero for the existing residents.
Does Broadmoor have a right to override Daly City? Or Piedmont, Oakland? Both are donut holes within larger cities. Rich neighborhoods protecting their interests against those of the community. Local governments in CA are convoluted and corrupt. Have a committee of experts draw the lines based on actual geography and common sense, and then we can let them decide what is right for their own “communities”