

They are absolutely civilians, although they no longer believe they are. Technically the military is supposed to be under civilian control as well (e.g., the governor is supposed to have control of the national guard in their state, the president is supposed to control the six branches of the military).
Look at it this way: the military is not supposed to be used for civilian law enforcement. That very, very strongly implies that police are not military, and are hence civilian.
If that’s the case, then surely there’s nothing wrong with police have military weapons and using military tactics, right?