I'm not familiar with SF, but in my little liberal-city-overrun-with-homeless-drug-addicts, the cops want to arrest more criminals, but the people they arrest get released immediately back out to the public again, so it's sort of like, why even bother?
This is a time for introspection of the type of government structures and leadership, not knee-jerk reaction. Probably feels satisfying to call cops pigs and donut munchers but that’s the lowest blow you can strike.
It is time for progressives to start looking inwards and resist the urge to scape goat Capitalism, Cops, Inequality, etc. Study from how good governing cities look like and learn from it. Educate the public. Purge administrative class that delivers nothing for the taxes people pay.
I don't know how to get back to that from where we are today
They left a vacuum which was filled by anger, jealousy, narcissism, entitlement, and even more consumerism than before.
I have no idea from what perspective your argument comes from. Frankly, I don't think you do, either. But I think in speaking to any resident of San Francisco you will hear many trends like this relating to lopsided (mis)use of police resources, and it comes in many flavors.