I'm very sorry James, I know how you feel. My father was the same way when I was growing up and he wanted nothing to do with my mother, me, nor my two siblings. It's a very hard thing to go through, but my mom raised us just fine on her own. The only thing you could do is have a heart to heart talk with your dad and tell him how you feel and let him know how this is affecting you and your siblings. If he's smart, he'll start being involved in your lives. But sometimes things just dont work that way, Im sorry. the way I see it is if he doesnt want to be with his own children that is his loss! He's missing out on wonderful times. I know that when my dad was that way I always told myself that I would be a better father when I grew up and I would always be there for my kids- and I did. And I was. Stay strong son it'll get better, trust me. I wish you the best of luck.