Because the family tends to follow the religion of the father/husband. He is the dominant figure and leader of the household. A Muslim man can’t just marry any woman of any faith, it has to be a Jewish or Christian woman only since those religions are closer to Islam in terms of theology. The objective for this dispensation is the hope that the Jewish or Christian wife will eventually convert to Islam after living in an Islamic household and getting used to the beauty of the Islamic lifestyle and the simple Islamic creed of radical monotheism as opposed to trinity, which is an intellectual compromise with pagan polytheism.
Chinese people eat insects they say they are high in protein and nutritious. I'm sure they even find it delicious. But just because something is nutritious or delicious doesn't mean its worthy of being food for human beings. This is why we Muslims don't eat impure things like pork, but also dogs, cats, vermin, insects, reptiles, crows, etc. I follow the Hanafi school of Islam and we don't even eat any seafood apart from fish similar to Judaism; to me eating crabs, lobster, oyster, clam, etc., is like eating insects from the sea. I sometimes glance at lobsters in a tank in a grocery store and it disgusts me that how can people eat this thing.