Sanatan Dharma is as new as the term Hinduism or Hindu (religious sense) and was a product of the 19th century and came out of reform schools during colonial rule
Yeah I will try to find a link for you, that culture is foreign to us as much as any other, which also includes holi as being foreign, was never practiced here
No lmao they actually don't even follow their own pagan beleifs and I think some Indian migrants from North India brought their "hinduism" there, so they are practicing that, which is historically foreign to our land