Hinduism is a pagan religion being a mix of two streams - Aryan and Indigenous. The Indo-European mythology has many commonalities right from India to Ireland. I feel a strong kinship with Pagans and Wiccans. I would not mind them using Hindu Gods and Goddesses.
jaki rahi bhavana jaisi
prabhu murat dekhi tin taisi
(is that Hindi or Sanskrit? seems like Hindi).
I see no reason why a red-haired Celt could not see God(dess) the way Indians do. I'm allegedly of Italian and Sicilian heritage - I say allegedly because there's strong evidence my ancestors were actually Germanic - and I see God and the gods in the Hindu way. Go figure.
Of course, they should take care that they should not change the characters of our Gods and Goddesses. Last thing, you would not have to make stories. We already have millions of stories, Hinduism being a living tradition.
This, for sure.