I'd imagine GP's point is something along the lines of https://what-if.xkcd.com/5/ https://what-if.xkcd.com/5/ that if all of the currently-moving machines were

I'd imagine GP's point is something along the lines of https://what-if.xkcd.com/5/ https://what-if.xkcd.com/5/ that if all of the currently-moving machines were suddenly bent on destroying humanity, most humans would not be in much danger because they don't really have that capability on the necessary scale.