Would this be another way of saying favoritism

I have an older brother that is 19, and I feel like my parents play favorites with him. They always say how cute and smart he is when he has all B and C nothing is wrong with him. I have a 4.50 GPA and my parents always says it’s not good enough. When my brother does things my parents protects him and put the blame on me for everything and said I need to stop saying my brother did them when he’s the one that actually did the problem. My parents says this “ He first born and he a boy it’s a different type of bond and situations” is that another way of saying he’s the favorite child ? How so I feel as is. Sometimes it makes me cry my self to sleep cause I feel un love