> If someone drags it here with them they need to understand its their baggage.
If you're a low-caste Indian working in the US, and your high-caste boss discriminates against you, I think you'd feel pretty pissed at someone trying to claim that you're dragging your baggage with you. It's the high-caste boss that's doing the dragging.
The thing that is the issue, again from the little I read, is that such discrimination is brought by other Indians on the Dalit and it's most defyingly bit something they want imported. I didn't figure or yet what is wanted and how but it's not like this is sintering you can blame them for.
Something like 90% of the Indian immigrants in the US are high-caste (big surprise, lower-caste Indians are less likely to be able to get work visas and travel), so of course this is a minority problem. Certainly not all of that 90% wants to perpetuate the caste system here, but I expect it's not easy to be vocal about it. Doesn't make it any less worthy of investigation, though.
Why do you think this is the case despite one of the most active affirmation programs in the world (just search "Reservation in India" on Wikipedia)? Something like 50-60% of seats in colleges and jobs in the government are reserved for lower castes (not a typo, the Wikipedia page should link you to official Indian constitution websites). I am from India and I genuinely don't know the answer myself.
I think to side with your point ... the vocal extremists have the mic.