Earlier quoted context omitted.
I'm far more worried about kamikaze drones with machine guns than I am about robot dogs. You can crank out 100 cheap and deadly flying drones for the cost of the smallest robot dog. The dog might be tougher, but it's much slower and easier to stop. I imagine in the not-so-near future there will be fleets of mini drones seeking out soft targets.
Machine guns are overly elaborate. A bunch of < $20 drones from Ali express with an explosive tied on would do it. You would not even need elaborate radio-jamming defeating control systems, they just need to fly straight until they hit something then a tilt sensor or timer detonates them. If it’s one thing we learned from myth busters, it’s how much damage the concussion wave from a surprisingly small blast can do to…
or go to the correct lat/long, given wind and temperature, they can just drop from the sky