Remove roles in bulk with specific condition

Suppose my discord has 1 common member role for everyone, and 2 separate roles for 2 different factions. In case one of those two factions no longer cooperates with us, and I want to remove both that faction's role and the general role at the same time without affecting the roles of the remaining faction members, what should I do?

Instead of removing each person's general role, is there a way to trigger conditions to remove roles in bulk?

It is said that discord still not have this feature, and my channels always have factions come and go, so we have a hard time when a faction go, because the number of people from a faction is up to 100, 200, 500, and we have to remove the general role from single of them. 

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