In the West, it is mostly black "reverts". And a new phenomena has started recently: Men in Middle East, Central Asia, and South Asia who are looking for visa to come to the West have been finding Somali girls on "match-making" sites, and have been coming to the West through that way.
So
@SonOfMaverick is right that Somali girls in the West have become easy prey for men who are coming out of prisons, and I would add for non-Somali men who are looking for visa in order to come to the West. Not sure why you're denying the obvious fact that people are noticing nowadays. It is not like they're making up stories. This is a reality.
On my end, I honestly think unless the woman is your immediate relative, we should ignore them. It is their lives to live after-all, so ignore them. Let them deal with the consequences of their decisions. And when you see them crying online, the next thing that should follow is keep ridiculing them and remind them that they should've listened to the counsel of their parents and relatives when they were running with their "romantic" ajnabi men.