The case of Elijah McClain was killed even though he was respectful to the officers. Police often harm people with mental disorders nad developmental disabilities. I agree with you. We need to protect the vulnerable in our communities.
The reason why training will fail is because the police are dedicated to enforcing the law, not protecting the community as many think. One in four police-related killings victimize a person with a mental illness. To change the outcomes of these people, we need to inject mental health professionals and safety officers into the system as oppose to those who treat Black people as enemy combatants.