Something to consider when bringing people in from other countries is how hard or easy it will be for them to integrate. When their social structure, down to the construction of the fabric of their family is something we outlaw in the U.S., it seems likely that it would be very difficult. Specifically, when inbreeding, which we know causes all kinds of genetic health issues including lower IQ is prevalent, one can only guess at how hard integration will be, and what the toll on the host nation will be. Read this study/report from the NIH US National Library of Medicine. I found it shocking, and the implications are immense. This is something we don’t hear about in the media at all.