How does being labeled as the scapegoat influence someone's ability to develop self-awareness and self-love over time?

Is it weird that people use their so-called Christianity as justification for hatred and evil, including murder?
I'm trying to stop eating red meat (me and my mom are trying to go to bird only, so chicken and turkey). How do you get over the addiction? I actually want to try and stop.
What are some common misconceptions about scapegoats in dysfunctional families, and why might they be seen as weak?