I try not to get involved too much anymore but I know that when I was drinking I was so afraid that AA was the only way and so despondent at the thought that it was my only way out. Truly a life of drinking seemed preferable to me.
So for me it's not about bashing other people's recovery choices but a kind of desperation I feel to give others HOPE that there is a way out of the hell of addiction without a 12 step program. Even 'real' alcoholics and drug addicts