SQ has always been dominated by La Eme. Northern California is Nuestra Family turf, while Southern California is La Eme turf. It was like that in the prison system too, until prison officials found out what was going on, then they had members of the NF transferred to the southern prisons, and LE transferred to the northern prisons. It was an attempt to break up the gangs on the street to not allow them a strong leader to look up to, but the California authorities were wrong, it lead to many prison attacks for a long while.