Oh, that type of theology was not based on racism, but on unbelief, the British Israelism thing...
Calvinistic Theology sometimes leads to that stuff, they say that the references to Israel in the New Testament arent actually Israel...
It is more Covenant Theology that leads to that, it is based on that in some ways.
But the origin of it is not based on racism, just lack of believing what it actually says.
But I can see how it LEADS to racism, though! :)
This is why I have entered the religion forum only once..I don't find a lot of Christian brotherhood among the "combatants"