The problem is not that they are abducting women and selling them as wives, but that they are abducting Christian girls and selling them to Muslim men. This is not bad for Christian girls. It is bad for Christian men.

The Cathedral, oddly, seems far more frightened of Christian Holy War than Muslim Jihad (observe their disturbing response to ethnic cleansing by Christians in the Central Africa Republic), so is reluctant to mention who is being abducted.

When group A abducts girls from group B, if it makes the girls available for general public use by group A members, this is extremely bad for the girls, since no one man has an incentive to take care of them. But if it assigns them to particular individual men of group A, then not only does that individual have an incentive to take care of the girl and her children, but the apparatus of violence and coercion that made the transfer likely means that he has greater paternal security, and greater reason to expect the girl to stick around, and thus greater incentive to care for the girl and her children than occurs in the Cathedral approved free love/leking outcome. Boko Haram believes that western education for girls is bad, because it indoctrinates them with immoral and self destructive ideas, and that girls should be married off at an early age. Seems to me that they are obviously right about this. The success in Christian societies of the Cathedral program of undermining marriage means that Christian men lack incentive to defend their women from Muslim men, as we see not only in Africa, but in Sweden and England.