I strongly dislike my family?

I know it's not right to dislike the people who raised you or what not, but I really can't help but to dislike (even hate) my family members. I don't talk to my dad because he used to abused my mom, so I always tried to be there for her. She would curse all these things at him or behind his back whenever they're fighting, but when they're done and I happen to voice a negative opinion of him, she scolds me for not being respectful (although it's okay WHILE they're fighting). My mom doesn't understand me either. She often nags on about little things. I keep my room clean all the time and once in a while I'd have a bit of clothes lying around and it would be her subject to scold at me for hours. She acts as if she's the only one who has to cook a meal for the family after she gets off work. Isn't that a mother's job? I never have a decent meal because everyday I hear her complain about it. I always looked out for my brother, especially when I have to stand him for him to my dad whenever my dad tramples on him (disallow him to join the basketball team, or to go out with his friends once in a while). But when I have a fight with my parents, he would ALWAYS side with them and would never ask me how I feel about the situation, just like he never asks me about my life (about school, my friends, etc.) but I'm always asking him about his just to make sure he's doing well. If you want an example of an ungrateful human being, that would be my brother. I might not always be a good son, but I try to be a good brother. I don't ask much in return other than that I'm left alone to do my own thing, but my parents would always try to into my business and find some flaws in it to scold me about. I just really can't stand it. I find my friends more understanding than ANY of my family members. Is this normal?