Earlier quoted context omitted.
Who even knows someone’s caste in the US. As an Indian living in the US for 20 years, I have never once even heard it come up in any conversation even in passing. How would you even tell? I grew up in India and I can’t tell.
Not Indian, but from observation in America, Indians get weirdly interested in specific information about the other party's hometown and family when making workplace introductions. It only happens between Indians and the same questions have never been asked of me. I assume this is how all the caste stuff surfaces.
You don't have to be from Southeast Asia to get caught up in this stuff.