That’s a sexist narcissist.

and MIL#1 is one

awful woman , just awful

in decades I have never heard her say the truth once

or be truly polite

or have kindness or charity

or nurture or encourage

she doesn’t treat her sons well but treats them less bad if they obey her and cave to her manipulation and abuse

I treat her like I would a stranger, which is neutral good, which is more than she deserves