Unfortunately, although it won't sound very politically correct, you could search and replace "pigs" with "natives" and that statement would sound like every imperial power, ever, most of which eventually fell to armed former barbarians. Of course the imperial powers wiped out a lot of native tribes, but all it takes is one success by a digitally replicating capable of learning enemy...

The more likely doom scenario is related to godhood. Sure a godlike power is capable of wiping out humans, but we've had our own power structures supporting themselves by propagandizing for millennia that "our" godlike superiors always help us wipe out our enemies because our cause is right and just or whatever, at least until it doesn't work and they're replaced by a new batch telling the same old story. So what worked as a paleo-conservative success strategy for millennia when talking about something imaginary, might not work when it collides with something real created by ourselves. Or even worse, collides with a strategy that actually works that's being run by another tribe.

Another interesting doom scenario is of course MAD, although now it only requires a team of programmers to play along, instead of a massive industrial complex. Sooner or later somebody's deadman switch will trip or a cult does the equivalent of drinking kool-aid then the party starts.