They shouldn't mix with other races or teach their techniques and skills to
anyone else even if some members of those other races would be strong in
the force... (They should just destroy all other force sensitive peoples and
. That could be the most darkest aspect and curelest aspect of K3.
EDIT: And it's not the genocide of Darth Nihilus, he eats for hunger. It's a cold, manlipatuive, smart genocide...like Takrin ordering for the destruction of Alderran.