Simply put: it is not possible to prove a negative. But it should be possible to prove a positive. No religion offers absolute proof of the existence of a god. Faith in what cannot be proved is critical. And it is not rational thinking to believe completely and exclusively in what cannot be proved.

As to no form of religion reflecting truth or being reasonable - that is very different from declaring a religion or belief system the only true one.

At least this is how I interpret BillD's statement. But he can speak for himself.

I not only do not accept the teachings of any religion as absolutely true, I see no proof that we (humans) have any more worth on this earth than ants or worms or any other living thing. We have come and will go as do all life forms. Reality to me; a frightening concept to some; but it is what it is.