The them in this passage would express Loyalty for the brother.
It could mean that when an immigrant child is a town where everyone else is different than him or her, then the society around them might treat them badly because they are an immigrant.
Dear (Friend),
There are obviously going to be some problems in the future with the sports, but remember that the simplest, easiest, and fastest thing we can do about those problems is re-schedule. If you have any further questions, just ask me.
Sincerely, (Your Name)
Les pièces littéraires ont pour thème "l'apartheid" reflétant l'esclavage et les expériences de vie dans une société à ségrégation raciale