That doesn't even make sense. The artificial pressure of "is this person's family from a caste that is comparable enough to our own that we can arrange for our

That doesn't even make sense. The artificial pressure of "is this person's family from a caste that is comparable enough to our own that we can arrange for our children to marry" is taking priority over any other selection criteria. Whether you're right or wrong about the genetics of IQ is irrelevant -- you're fighting way too hard without realizing you're not even in that arena.