i, too, was hung up on the Christian underpinnings of AA. That was a decade ago. I guess there is something to be said about hitting bottoms.
Today, with 10 months, not 10 years, of sobriety, I embrace the spiritual aspect of the program. And I've learned there is a big difference between "religious" and "spirituality."
I hope you discover the difference, too.
And I find that those who have 20 years of AA attendance live amazing lives. I hope I become one of them.