Could this be an abusive situation?

I am not trying to run to my parents for protection. They should have bitten this in the bud a long time ago. It is not my job to punish him because I am not the parent. I am turning to my parents to punish him, help him, or whatever for his actions. To me, this isn't running to my parents for protection. It is trying to bring it to their attention he needs extensive help, more than I or they could do. He is the baby and they treat him as if he is such even though he's 16 years old. He paints a pretty good picture of himself to others and resorts to blaming me or others for what he did.

I am a pretty tough person but when I am called a b*tch for not doing something exactly to his orders then I am offended by his verbal antics. This morning he said, "Visiting here isn't a fat ride, just to let you know." This was after not doing something exactly to what he commanded for me to do.