Friend Sugacubez,
Sorry..... I accept that........ Hinduism came out of Buddhism and Lord Buddha was the founder of Sanatana Dharma. All the Upanishads were copied from the Buddhist scriptures.
But, I rever Lord Buddha as an Avatar; hence I would happily follow Sanatana Dharma as it was founded by him. Since Sanatana Dharma has its roots in Lord Buddha, whom I rever, I follow it to the hilt. The ahimsa, re-incarnation, karma, moksha- these concepts touch my soul and hence I follow them.
I do happen to believe that science is explained by intellect and hence is Mayic in nature as the intellect comes from Maya. Hence, I tend to follow a Sanatana Dharma which sounds "irrational".
I do not need to post back ups or scientific evidence; google is great and readers can find out on their own if interested and make their own conclusions. As for me, the teachings of an Avatar are itself the evidence. I do not tend to explain the inexplainable by the way of science.
The quotes you have provided are second to none:-
(1) Mr Fidel that you quote is indeed the greatest scholar on earth on Bhagvad Gita, of course.
(2) Also, Dr Satya Prakash U quote, mentions in the same article that 5 upanishads were there before Lord Buddha.
(3) The website kasaragodvartha goes by the "Aryan invasion principle"; but that too mentions "pre Buddhist" Upanishads.
(4) The quote from the "world renowned" Academy of evolutionary metaphysics actually is written to trash Hinduism and Buddhism as well; but that too also mentions that "karma" and re-incarnation" were borrowed from Hinduism. That web site actually supports "evolution over creation" like a rabid dog and hence trashes all religions.
(5) The essay by German Professor Glassenap, published by the Buddist publication society by the way, also mentions preBuddhists Upanishads and says that karma, re-incarnation, moksha were taken up in Buddhism as these concepts were widely prevalent before Buddhism.
Inspite of all these quotes that u have mentioned, I am one of those who really believe in the "fairy tales" like that in Tipitaka (over the "scientific evidence" presented by the above mentioned "Emeritus Scholars" like Mr Fidel) that Lord Buddha came as an Avatar many times before his Buddha Avatar and all these concepts of ahimsa, dharma, moksha, karma, reincarnation etc were given by him in previous Avatars and also the "pre Buddha" Upanishads were given by him.
You are absolutely correct that Sanatana Dharma cannot stand on its own without Lord Buddha!! He is the founder, developer and sustainer of the Sanatana Dharma either through his "Buddha" body or through other Avatars.
Best wishes on your journey........
Regards,