I'm sorry WL. It's obviously very painful for you.
The way I look at it you're a good guy - whatever was going on in your parents heads was their problem.
You are not what they thought you were/are - you're so much more.
I hope you can come to accept that and not carry the burden of other peoples misguided, wrong or just plain cruel ideas.
We can transcend the past, as Steely said - and not drinking is a fundamental part of that transcendent journey, I think.
D