What he means by "fix" is make is so that when peasants migrate, they take their own religion with them.
As for the rogue rurals, I think that they benefit from a military force that prevents the monsters from invading from quite as many directions.
No, what I mean by "fix" is prevent peasants from moving into lawless regions, frequently plagued by monsters, undead, and brigands, with no infrastructure set up to ensure they are properly fed there.
No one with two brain cells to rub together would willingly go into a rogue region to try and live.
