Case in point is the Xbox player group The Vail in NLTT 6655(I think I got that right). We got that group to 1%, as a response to their actions and threats. Yet, such as it is, 1% only means soon to be 50%. Yes, yes, they must put in the work etc. That said, minor factions as a whole are immortal, if there is a procedural generator for factions, why not let some factions die, to be replaced by a random faction that suits the systems spread. It would make sense for say, a communist power come to replace a dictator that was defeated by a democracy, but said democracy is corrupt and exploits workers and lower class etc. I digress, All we are saying is, let there be the threat of elimination. Then we can finally call this a game.
Edit: Now that I think about it some minor factions have died off from being pushed off by expanding minor factions, but I'm guessing rubbernuke means that PMFs do not suffer this fate...