My 9 year old brother is tearing my family apart...?

Your little brother is a typical annoying crazy "bad" child. I've dealt with a couple. They constantly want attention and will do anything for it. The parents generally don't punish him enough and often spoil the child with gifts they don't. These kids will drive their older siblings crazy because the older sibling usually is not allowed to hit or attack the younger one. What you need to do is completely ignore your brother and try to spend a lot of time away from home. You also need to confront your parents and tell them what you want them to do.