Looks like the homosexuals are taking over San Fran!
They are politically powerful, and have been so since the late 1970’s.
This is however not in fact due to their numbers, which seem to have been stable or even fallen since the early 1980’s, but because the attitude towards them has become a social marker for the truly politically powerful. They are the mascots of the prevailing upper-middle class pseudo bohemian culture that dominates local politics, because these are the people with the money.