The first time I heard the serenity prayer I thought, this rings true for everything in life. We want to change things that we can't change. I wish it was that easy. But, it is definitely better to accept what you can't change instead of continuing to be distraught trying to change it.
With addiction, for me, I believe that we (addicts) have a choice with that first drink/drug. But, after we put that in our bodies, the choice is up and the brain disorder kicks in. If I drink again, I do think it is me being weak because I had that SOBER choice. It is definitely a controversial topic with many different opinions but that is just mine. I will most definitely be weak making a wrong choice if I ever decide to drink again.