The misunderstanding is the assumption that these DAs and those who support them want safe communities, but they just want to get there in a different way. They don't. If you despise most of the people you supposedly serve and if you despise the system in which you work, you do not want to serve their interests and you want to destroy that system. These DAs are gratified to see the criminal activities you mention because they believe these are perpetrated against the oppresors in out society by the victims, and these victims are victimized by the system that they believe they are destroying.