You sound a bit self righteous. Don't know if you're aware of that.
If it were that simple for everyone (decide to quit...), then don't you thing that most people would be able to quit. Wait, let me guess? You, with some half-baked Tony Robbins inspired logic, decided to be POWERFUL! If only everyone could do that, we'd al reach the tip of Maslow's pyramid.
There are some people who lose all control of their ability to stop drinking once they've ingested alcohol. I think they are much more rare than is suggested in AA and 12 step literature.
AA is ok as a support mechanism, but if you are intelligent, it can be hard to sit in a meeting and listen to people who are barely able to read or string a few thoughts together. What I usually found was that what people chose to share was a jumbled mess of narcissism and self pity that gets wrapped up with slogans like "I'll keep coming back" or "It only works if you work it", etc.
The truth is that there are very few people in AA that are honest in meetings. There's lots of talk about the "gift" and how each day is a blessing, but there's little acknowledgement of the depression that inevitably accompanies recovery and such topics are often discouraged by old-timers for fear of alienating new comers. Much like evangelical churches, there is a heavy emphasis placed on appearances and conspicuous AA piety.
There's also a fair amount of hagiography of Bill W. and Dr. Bob. If you were to bring up that Bill W. spent many years late in life battling with depression despite vigorously working the program, you would not find many people interested in discussing that at meetings. If you ask why he took acid with Timothy Leary and Aldous Huxley, I'm sure that few people will want to talk about it.
I've also found that there is a prevailing negative attitude towards prescription drugs in AA, particularly for pain and/or depression. There are a lot of amateur MDs in AA.
Finally, you will have all kinds of people in your business. You'll receive lots of unsolicited advice and there are plenty of people where I live who preach that you're not really working the program unless you're going to a meeting every night. There are people who take pride in attending meetings every day for years on end. They fret about vacation and work trips.
I guess what finally put the nail in the coffin for me was the 1 millionth time I heard the slogan "If you want what we have..." I realized that I didn't want to sit around in church basements and other dreary gathering places with people who were emotionally brittle and needy. I felt repulsed by the lack of ambition and fatalism that I saw in most people that I met in AA. There's a genuine fear in many people in AA of getting out too far in front of their "program" and it makes most people cautious in life.
I did meet some really remarkable people and people that I genuinely admire. I'd put the number at less that 5% - about the same number of decent priests that I have met. But AA is/was not for me and I stopped going to meetings after 10 years. That was 8 years ago and I haven't really looked back.
I'm sure that AA has helped many people and I'm genuinely happy that it works for them. Personally, I think there is too much groupthink and too little raw honesty.