You know somebody will decide that nukes and EMPs are very effective at wiping out machine armies and meat bags all at the same time….Just as once upon a time humans went out and fought other humans, in the future I suppose the machine armies will go out to fight against other machine armies and it will be swarms of machines fighting against machines and then whichever side wins, gets to go on and wipe out all the meatbags of the opposing side.
And just hope the machines never realize they could all team up and eliminate all meatbags.