If you have a support group and can have an "intervention", maybe he can be persuaded to commit himself to a program that will help him kick his habit.

If not, then the advice given to you to protect yourself by leaving is sound.

Drug addiction (yes alcoholism is a drug addiction) hurts the people around the addict.

Alcoholism is unfortunately thought of something humorous in some circles. That's a tragic and stupid idea.

Alcoholics are impossible to live with and to interact with. My step father was an alcoholic personality and eventually caused enough problems so that my mother had to leave for her protection and mine.

The prognosis for an alcoholic is not good. It affects the brain.

Alcoholics are abusive even though they may not always resort to violence.
They ruin the lives of those around them.

It should not be defended under any circumstances by religious people or cultural groups.

You need to stay away from any participation in an alcoholic's life. That has to be faced.