I'm going to laugh at my dying abusive father whilst a part of my family condemn me for it
Do you have a reason for laughing at a dying man?
My father has done nothing worthy of me loving him, so I'm holding a grudge.
It's pushing it to laugh at someone who's dying. But it is so wrong for parents to abuse their kids.
He was doing it when I was young and I can't forgive him. Besides he's going to Hell any ways.
What he did to you is wrong. However he might want to apologize and make things right with you on his deathbed. Even if you don't like it I think it might help bring you closure to go see him.