Yes, you're absolutely correct. ICE is something different. You're breaking up families and don't give a damn. You're an asshole. Laws be damned. This is a human thing.
Regarding regular law enforcement, I see the difficulty. Not that I agree with all they do, but someone has to do something given our current socio-economic situation. I don't defend bad cops but it must be a very difficult job for those who have to deal with very difficult people. I wouldn't want to do it, myself.
That being said, I was just watching Cops an hour or two ago. I don't know why. I suppose because I grew up watching it, when I was young and dumb. But everytime the outcome is the same: I watch for no more than one episode and then find myself sickened. Because it's making entertainment out of other's misfortune, no matter how bad they may or may not be.
But point here is that the police on Cops do not mask themselves. They sign on. Because they already signed on. They could easily be doxed.
If you ain't willing to face (literally) that potential, then don't do it. I get it's a different era. Video present almost all the time. Same reason we, fortunately, don't have amount of serial killers like we used to. But it's just part of things. People need to see your face and badge. If this somehow becomes a problem, because of doxing and recording, we'll figure something out. Until then, don't wear a mask.