This feels like a religious slam piece that really doesn't belong on HN. But I will point out that this is ridiculous if you know a little bit about Hinduism.
It's a religion that does not recruit nor convert people and does not reject the idea of others having different religions. The idea of a "supremacist" movement within such a religion doesn't make any sense.
Members of other religions that don't hold such an egalitarian view, such as Abrahamic religions which believe in a single correct answer for God, might be inclined to have such a piece written.
your theory does not match reality, and it's a political movement. As pointed out in TFA gandhi was killed by a (fellow?) hindu nationalist in 1948 because gandhi was in favor of giving part of india to muslims
It's a religion that does not recruit nor convert people and does not reject the idea of others having different religions. The idea of a "supremacist" movement within such a religion doesn't make any sense.
Members of other religions that don't hold such an egalitarian view, such as Abrahamic religions which believe in a single correct answer for God, might be inclined to have such a piece written.