I secretly hope my biological father is dead
Why do you secretly hope that?
I hate him and don't want him in my life at all
It is ok to be angry at your father for what he has done to you, and to not want a relationship with him. But it still isn't right to wish death upon him.
I don't care. I hope he's dead. Fuck him.
I understand, but it still isn't right to hope that he's dead. I think you should try to put him out of your mind completely, instead of focusing your anger onto him.