Are most women with younger brothers "brother-supporting demons"?

A friend's wife is a typical brother-supporting demon.

Her brother is only 2 months older than her daughter. She treats her brother more affectionately than her daughter.

She gives money, people, and love, even if it hurts her daughter, she still prefers her brother.

A sentence she often says is, that's my brother, my brother, we have the same blood. 😂😂😂