Elsewhere on the thread you pointed out that fair housing laws mean that you don't get to control who lives next to you even if you're renting out those properties. So your only option would be to leave them empty.
Yes, and by voting the way that you do, you are creating a housing crisis.
I'd like for people expressing these political preferences to not be allowed to live in my neighbourhood either, but unlike you, I also recognize that you have as much right to live there as those 8 college students.
Actually if you live in the bay area, you live in an oligarchy. A great part of the renters in the area cannot vote and thus are not represented in this matter.
If foreigners could vote in San Francisco, the majority of which are renters, it would overwhelmingly crush this position.