I fail to see the problem.

The world (even a fantasy one) is not a False Dichotomy between good and bad "sides"- there is a whole range in between and that is without adding in the Blue and Orange axis. The Mafia, the Yakuza, ISIS, Al Qaeda, outlaw motorcycle gangs, self-employed meth cooks and corrupt cops are all antithetical to the good order of society but that doesn't mean they have to cooperate with each other.

Of course, a party that is at war with the forces or order and every other group they run across does not have great long-term survival prospects.

I fail to see the problem.

The world (even a fantasy one) is not a False Dichotomy between good and bad "sides"- there is a whole range in between and that is without adding in the Blue and Orange axis. The Mafia, the Yakuza, ISIS, Al Qaeda, outlaw motorcycle gangs, self-employed meth cooks and corrupt cops are all antithetical to the good order of society but that doesn't mean they have to cooperate with each other.

Of course, a party that is at war with the forces of order and every other group they run across does not have great long-term survival prospects.