Yeah, the rank-and-file (I know a few cops) are on board with this. It’s the Chiefs and the Sheriffs and the other politicians playing at being law enforcement that oppose anything that might hurt their re-election chances.
Why isn’t there more mutiny of beat-cops. It seems to be the same story almost anywhere. Beat cops would be glad to deal with dead burglars. While police chiefs have kittens about it.
Two main reasons for their opposition:
1) After a few burglars/muggers get shot, these types of crime are likely to go down, reducing need for a larger police budget.
2) Burglars and muggers have mothers, brothers, sisters, girlfriends, other friends, etc, and these people VOTE. They tend to vote Democrat, and are a significant constituency.