Hey, I feel for you. I have spoken to my father once since I was df'd in 90. I found out in that time he almost died in the hospital. So, instead of stressing about it and trying to change him (cause I can't) I figure it's his loss not mine. No amount of bitching from me to any elder will do me any good, they would only tell me they won't get involved in family matters anyway. I have been told this before.
My advice, fulfill your life to the fullest and be happy knowing you did it on your own.