I can understand how you'd want to get rid of your dad. He doesn't sound like a very good dad to me either.

I gather that he has never actually physically abused you or any other members of your family. It's more the childishness, laziness, etc. It could be that he is having some depression. Has that actually been addressed in the marital counseling, I wonder. Would he refuse to see a counselor on his own and get treatment, if in fact he is correct about his diagnosis?

You don't say how old you are, but I gather you are approaching the age of adulthood, since you are in a university. As long as he doesn't actually abuse you or your siblings, then the best bet might be to try to stay away from him as much as you can. In a few years you can move away.

Honestly it sounds like your mother is getting the brunt of his bad behavior. Ultimately she would need to be the one to take the matter into her own hands.

Has he threatened physical abuse, suicide, or other negative consequences if his family left him? Does he demonstrate signs of possible violence, such as being very jealous or trying to keep his spouse under his thumb? If not, then you folks might be worrying too much about his responses.

I'm sad that you're having to live in this upsetting environment and I can understand your feelings. My last question is: Could you possibly talk to a counselor at your university and see what he/she says? If you can't get rid of your dad, then you might need to see how you can protect your emotional health under the circumstances.