No but it's extremely common. Spend some time on the Friends and Family forum and denial is a huge part of living with an alcoholic. Look you may know your dad is an alcoholic but no one needs to accept your reality even if it is staring them in the eye. I think the key to our recovery is learning to accept our reality and to accept others may not have that view. That is ok. You constantly pointing out your family's shortcomings accomplishes nothing. In order to find true peace in your heart you need to stop wishing and hoping you can change things. Accept them for what they are.