There's another major issue with civilians and autonomous warfare machines of all sorts: Civilian control.
For all of history, military power depended most of all on population size (to provide soldiers) and economic resources (to equip them). Mad wizards were limited by population. However, mad wizards - megalomaniacal persons with lust for power and disregard of others - with enough resources might manufacture a machine army.
Also, note that these machines are often built for the US military by people who openly denegrate democracy and seem megalomaniacal; they have the technology and a lot of wealth. Could they build a factory somewhere and hide in their bunker until it's over?
For all of history, military power depended most of all on population size (to provide soldiers) and economic resources (to equip them). Mad wizards were limited by population. However, mad wizards - megalomaniacal persons with lust for power and disregard of others - with enough resources might manufacture a machine army.
Also, note that these machines are often built for the US military by people who openly denegrate democracy and seem megalomaniacal; they have the technology and a lot of wealth. Could they build a factory somewhere and hide in their bunker until it's over?