My little brother has really bad angry issues. I don't know if he has a mental condition or what but he get mad and violent over everything. Today, I called him stinky boi and he punched me in the nose and I bled. By parent yell at me and said nothing to him. I'm afraid he going to grow up to be an abuser because my parent genuinely believe there is nothing wrong with his behavior. I worry for the safety of my other siblings. If he's younger than me and is able to make me bleed imagine how badly he can mess up my even younger siblings. There isn't much I can do other than talk to him but those have stopped because my parents told me to stop parenting him.