AMEN. Alcoholism and drug addiction can be cured by changes in lifestyle. No other "disease" (cancer, heart disease, Lou Gherig's disease, arthritis, brain tumors, bursitis, etc.) can be cured by changing your lifestyle. So, if alcoholism and drug addiction is a disease why can it be cured by quitting; as millions have done; yours truly for one.
I'm not sure that alcoholism can be "cured" but it can be controlled through abstinence. But I do not feel like I am cured, only that I am in control of my choice to remain totally sober. So in a sense I think you are right.
Congratulations on quitting and I wish you the best.
Actuall, type II, or adult onset diabetes can also be controlled by lifestyle changes. In some cases it will go into spontaneous remission.