I say tell them it is not AA  that is the Giver...it is Life itself!  And it is not any Religious Group either. Nor is it any national symbol writ upon a piece of paper with a seal.

And it's for everybody on equal terms. No one is excluded. And joyful fulfillment is the result of a real life...really lived. AA is a symbolic aid for calling a meeting of folks who want to have a better experience. Think of it like the torch in the hand of lady Liberty welcoming all the world to come. That's all. We can only point to what has always been so. Alcoholics 
tend to be desperate enough to listen is all. 

True Self has the answers for each one of us insofar as we remain in line with divinity's beam.