Affiliate Marketing Secrets

Polygamy is no stranger to human history, but the practice is widely outdated nonetheless. There are however many remaining polygamist sects, some many generations deep. Regardless of religious desire, the practice is obviously highly detrimental to the genetic diversity of polygamist offspring. So my question is simply “Where do they keep finding these people, and is there a way I can learn this powerful mind control?” I would appreciate answers from practicing polygamists or experts of the various affiliated faiths.