But these issues are usually much more nuanced and complex for us to parse as non-members in the group. I'm curious what role people think government, or even a university, should have in regulating the internal divides of any ethnic group? 

As long as it's non-violent and entirely voluntary, I don't really care if two Indians don't want to be in the same group as another one. If they were attacking him over it, that's an entirely different question. But is some foreign government's "liberal" policy of interfering in some students ethnic biases solve the problem of Indian caste system? I highly doubt it.

Sure, take a personal stand against racism. But I don't see what that has to due with Mr Singh. Unless of course he plans to make it a government policy to support some random terrorist, or uses his position to speak out in support of them, which I highly doubt. It would be political suicide (same w/ Trump). I'm more interested in what his tangible policies are, related to Canada...