It's also an issue of police culture. If the culture, and let people within that culture, supports keeping things the way they are for their own benefit, and they are allowed to continue in those positions, then nothing will change.

Basically, this is a multifaceted problem. No one single solution, by itself, will work. There needs to be worker protections, independent oversight, higher psychological standards (since they were lowered to allow people with combative/abusive personalities to join), higher educational standards (BPD only requires a high school diploma for people who are supposed to enforce and know the law), a requirement for cops to live in the communities they police (or at least in the city limits and within a certain radius from that community), taking welfare checks and non-violent interactions with the unhoused away from the police and giving them to teams of social workers and psychologists (who we need more of) who are far more qualified to deal with such situations, and actively working to increase the community's trust in the police through active engagement with the community.