I am missing your point Indian. No two people think alike and everyone is free to follow ones form of worship and life - so if there are many religions let there be.
The concept of Gods has more to do with Characterization - it doesnt matter whether the human called Rama existed or not - but the Character called Rama would exist forever and would be a role model.
IH,
I agree they are based of Smrithi and Shruthi. But it was based on the situation in those times and the modern times are different.