And you wouldn't say that about Christianity so you are sectarian, and it's about one of those 'strange foreign' religions so you are a racist.
Hinduism is an ideology, and we are allowed to criticise, and even make fun of up to a point, ideologies. If the two party leaders were a Christian and an atheist, I dare say Walt would have made the same point. After all, he was only stating a fact about Hindu belief.