As Somalis of old said, the devil you know, is better than the devil you don't know.
In the world that we live in, you get the good, bad and crazy. At least with a Farax (if you're unlucky enough to marry a bad or crazy one), generally speaking if he tries to abuse you, or take your kids away your parents and qabil can speak to his people. There is a point of contact, shared traditions and accountability. With ajnabis, what qabil or people can your mahrams speak to?!