Be angry at the DA then. You have a point, there's an attitude that cops have a right to weild deadly force but citizens don't. But I don't blame beat cops for this state of affairs.
The only cops I universally begrudge are the "TACT" squads and the lowlife squads who illegally search vehicles by the expressway. The reason I begrudge this line cop is that I would be in prison and my family left destitute in the same situation. Cops should not be above the law. As a matter of fact they should be held to a higher standard than private citizens. The opposite is true. Thay can get away with murder literally. Just ask the DA what he calls it when you do the same thing.
When the DA's get their heads out of their asses and treat law abiding citizens the same as cops, I will support REAL cops with a passion.