Frankly, I find that less 'naive' than I do 'dangerously possible'.

Autonomous weaponry is one of the few ways that a fascist state could reasonably maintain violent control over a large and hostile populace.

I guarantee Trump would rather have perfectly obedient killbots than critically thinking soldiers, or even just the 5 murderous assholes required to oversee tasking for 1000 semi-autonomous police drones.

The least plausible part is the private sector, which just doesn't work that way.