Well my friend, I am afraid that your conclusions are quite incorrect.
Hinduism, is, unlike any other religion, designed to be completely
analyzed by its constituents. This means that you can still be an
atheist, theist, or agnostic and call yourself a Hindu. Hinduism can
stand all the grilling questions that you want to present, fire away.
However, to question the validity of any relgion, is, in my humble opinion,
rather foolish.