How far would you go for loyalty?

When I was younger, people in my neighborhood knew that it would be a sure fight with me if anyone picked on my youngest brother or my mom or dad.
I was not the forgiving kind. Even if I got into a fight with my mom or brother, it did not give anyone indirect reason to ever be mean to either of them. (I never fought with my dad)
Even as an adult. I once gave a friend of my daughter a ride home from school. She decided to make fun of my son in the car and tell me offensive jokes that she made at him in school to belittle him.
I told her to stop before I let her out in the middle of the road. She did stop but when we arrived at my home (she lived in walking distance) she wanted to come over and play with my daughter. I told her she was not welcomed as a guest in my home till she appologized to my son. She would not and she was never welcomed at my home.
Just so we are clear. My son never even socialized with her. She just felt he was easy to pick on because he wasn’t the type to be aggressive.
I never have friends that are mean to love ones, even if they are otherwise nice to me.
For me, family first , friends second and sometimes last.
Do you feel this is outdated thinking, or is it the true meaning of loyalty?