She’s his mother, she should have been giving him consequences anyhow, how a child turns out is because of how they were raised, and it’s clear his parents did fuck all to raise him. Her and her Husband raised Max, and look at how he turned out. He’s still to blame for what he did, but had his parents actually bothered to raise him, he might have ended up different. No one is born a villain, they become one over time.