It is? They utterly dominate in the US. Indian Americans have far and away the highest median household income of any ethnic group in the US (and it’s close to 2x that of white Americans). My understanding is that almost all Indian immigration to the US is from the upper castes.

When my Muslim grandfather was growing up in the 1930s in Gulbarga, he used to make a game of touching the water pot of his caste Hindu neighbors just to see them curse him out and have to re ritually purify it. Some of us I guess have to remind people that there isn’t a monopoly on migration.

Indians that came from Punjab in the early 1930s were not upper caste members. A large percentage of engineers that arrived in the US and Canada since the late 90s do not belong to upper castes.