I hate my brother; frankly I wouldn't care if he died.
Wow, why do you hate your brother so much?
He is lazy and thinks he's a know-it-all.
Sibling rivalry is completely natural. It's wrong to hate members of your family though. Maybe you can take some time and sit down and talk it out.
I'm not going to do that. I have better things to do.
Nevertheless, hating on your family brings you down. You will have a better relationship with your brother in the long run if you can talk it out.