Let me correct that for you:
The ancient Hindus were originally monotheistic according to [my inexpert and very limited and cherry-picked quotes of] their own original primary ancient texts before they [purportedly] deteriorated into polytheism. As I have [claimed to have] proven above with [very limited and cherry-picked] direct quotes from the primary text of the ancient Hindus. So they [may or may not have] agreed with me in theory.
As I stated above:
Lacking such holistically-based expert interpretation, you have proven nothing!