How can I or anyone prove a negative? I can only offer my life experiences as a non-high caste Indian whose both sides of the family eat meat, that caste never ever comes up with any of my Indian coworkers, managers, friends or family. Nor has anyone ever mentioned to me that they experienced issues because of their caste. In rural India and among older folks caste is more important, but in America it's pretty rare for people to care about caste. Any discrimination must be dealt with, but I don't like the generalization on HN than Indians are casteist.