This view says that the differences between the teachings of Christianity, Judaism, Islam, Buddhism and Hinduism are insignificant and superficial. All believe, for instance, in the same God – a universal loving Spirit. It insists that doctrine is not important.
First of all, it’s just not so. None of these major traditions of the world believe and teach the same thing on the very basic and most important tenet of any religion – the person, essence and being of God.
Only Christianity, Judaism and Islam serve a personal God who requires accountability but none of those agree on who He is – Jesus, Jehovah or Allah. This axiom collapses under the weight of the facts.
Keep in mind that we can call their attention to the fact that insisting that the teaching of major religions are insignificant and don’t matter is, in itself, a teaching. This is a doctrinal stand made by a group of believers in an impersonal God or in no God at all. They believe that their view of things is superior – that they have “the truth”.
Those who hold this view do the same thing they criticize other religions for doing.
I relied heavily on Keller, Timothy J. The Reason for God: Belief in an Age of Skepticism, New York, Penguin Group, 2007
Sketches on the way 