The Aryan Brotherhood is the only white supremacist group in Mississippi prison and being a major prison gang in the state. They are exclusive so they don't really compete for membership with the Simon City Royal. They "might" use the royals as a recruitment pool. The A.B have around 152 members in Mississippi prisons overall.
I doubt a Folk Nations gang like the SCR is being used as a recruitment pool by the AB. But you never know for sure of course
