How do I stay sane?
Gently put, you are not sane. Go attend a city council meeting; you will find you are with your own kind.
Carol Denney and Keith McHenry ( artist and co-founder of Food Not Bombs ) protested Cody's Books' anti-homeless policy (featuring repeated sidewalk cleaning) using a small swimming pool, face masks, snorkels, squirt guns and pool toys. There is always something you can do.