I have known hundreds of alcoholics in my life, but I've never known anyone who became an alcoholic because of his/her upbringing.
And I'm not about to blame anyone for being an alcoholic--I'm five years sober, myself. Nobody asks to become an alcoholic.
Still, it doesn't really matter what "made" you an alcoholic--the solution still requires hard work by YOU to change. And having a dysfunctional family doesn't make you an exception to that. Plenty of alcoholics recover despite having dysfunctional families. What are you doing for your own recovery?