It involves a massive increase in housing prices, primarily brought about by artificial supply restrictions, that results in unintentional displacement. The reason the Mission is still variegated is rent control, along with various forms of affordable housing, housesharing, master tenant slumlords, SROs, extended family arrangements, etc. It's a pretty unique and amazing place really.
Yeah I'm sure handshake politics goes a long way in these neighborhoods often to the detriment of the unsuspecting, unconnected and un-special-interest-group attached renters and owners.
Ellis evictions suck particularly hard because they can happen out of the blue for any building, even if you chose one suited for long tenancies. I don't know what percentage results in protests, but it's quite a few. Some of the contested ones fail on technical grounds before they get to the protest stage [1].
