I don't think I want to see my brother for the first time in a decade
Wouldn't seeing him be a good thing? Why don't you want to see your brother for the first time in a decade?
I don't like hypocrites and I hate liars which is what my brother is.
Your brother may need you and it is wrong to let him down. Maybe you can talk to him about the concerns that you have.
Screw that, I don't like him that much.
It sounds bad, but it's been a decade. Maybe he has changed into a really good person and is trying to reconnect and make amends. Maybe it's best to give him a shot since so much time has gone by and he is not the same person as you remember.