The future in Terminator is set in the year 2029. The movies just missed the mark by a few decades so we can expect the machine uprising in 2029 and the future hellscape ruled by machines is 2049.
Militaries depend on poverty for labor. Recruiters don't prowl around private schools in rich neighbourhoods. They focus on poor neighbourhoods. The problem is that once general AI is achieved, and the majority of the human population become unemployable, it's gonna be hard to have people just straight mass murder the masses and cull the human population down to what is sustainable long term... That's where the AI killbots come in!
That's the entire premise behind the US and Israel hacking Iran's nuclear plants (remember Stuxnet?), they don't want Jihadists to get access to devastating weapons because they will use them against the US too, any chance they get.
Military technology eventually ends up being used by law enforcement eventually. The ethical questions removed from human choice raises so many possibilities of crimes against humanity in war. What could be done when its used on it's own people?
But apparently using remotely controlled robots to distract or disable active shooters is going too far because the word "police" is attached to the concept? America is fucked, man. Don't even engage your thinking meat, just go whichever way the masses are pushing.
I was referring to an earlier event where San Francisco police proposed to use remotely operated robots in barricaded suspect situations to disorient or otherwise disable a shooter without putting additional lives at risk. Like putting a stun grenade and a breaching explosive on an RC car. The proposal was rejected, with one official admitting to not even understanding it, but voting nay because police robot bad.
That was apparently going too far, but using autonomous weapons in an international dick-waving contest is somehow okay because the targets are non-citizens on foreign soil.