Just a little rant - Any advice is appreciated.
I'm very angry with this girl (22), she has been with my brother for 2 or 3 years - it's a toxic relationship with him using words like mental abuse and door-mat. Up and down the drama is intense. She is a horrible person and treats him like trash. Yet he always goes back 
2 weeks ago they " broke up" and he told us told us some of the awful things that she had said about our family. I don't care about the personal attacks, just this one thing - she said that if her and my brother ever had a child, that said child would never be allowed to play with my LO because he is mixed race . WTF.
She is justifiably now banned from my house and from ever looking at my child. I want to tear out her eyeballs. (p.s I won't, shes not worth it.)
My brother is on a date with his ex. She now has a new boyfriend in these 2 weeks therefore she is now cheating on him as well (bro knows about all of this).
My LO at 18 months is innocent and beautiful. I don't understand how anyone can think that of a baby. How do i make him see sense? He needs to see that his family should mean more than this stupid little girl...