The six blind men and the elephant is a faulty argument. Very faulty in fact.
The real point of the story is constantly overlooked. The story is told from the point of view of someone that is NOT blind but can see that the blind men are unable to grasp the full reality of the elephant and are only able to get hold of part of it. The story is constantly told in order to neutralize the affirmations of the great religions, to suggest that they learn humility and recognize that none of them can have more than one aspect of the truth.
But, of course, the real point of the story is exactly the opposite. If the storyteller were also blind, there would be no story. What this means then is that there is an appearance of humility and a protestation that the truth is much greater than anyone of us can grasp. But if this is used to invalidate all claims to discern the truth, it is in fact an arrogant claim with the kind of knowledge which is superior that you have just said, no religion has.
To say, "I don’t know which religion is true" is an act of humility. To say, "none of the religions have truth, no one can be sure there’s a god" is actually to assume you have the kind of knowledge, you just said no other person, no other religion has. See, it’s a kind of arrogant thing to say nobody can know the truth because it’s a universal truth claim. To say, ‘Nobody can make universal truth claims.’ That is a universal truth claim. ‘Nobody can see the whole truth.’ You couldn’t know that unless you think you see the whole truth. And, therefore, you’re doing the very thing you say religious people shouldn’t do.
Do you see the self defeating argument in using this parable?