I'm going to try to keep this as simple as possible. My dad (who is white) has two sons from a previous marriage before he met my mum ( who is black). When they were teenagers they came to live with us. During this time one of them was racist to me on several occasions. It caused massive rows between my mum and dad but ultimately they stayed together.
We got through it and had an ok relationship until I met DP who is foreign. The same son had issues with him (I believe) solely because of his race and one time attacked him and broke his nose. This is when I cut off all contact with him and have tried to stay away from him but he continued to harass both me and DP including tuning up to his place of work. Eventually things settled and he has got on with his life and we got on with ours.
I am now pregnant with my first child and it has become apparent my mum (despite swearing she would never have anything to do with him again) is back in contact with him. I think this is mainly to keep the peace with my dad.
Now I can't stop anyone having a relationship with him if that's what they choose. However, AIBU to tell my parents I do not want them looking after my baby when he is on the scene? My mum has mentioned looking after my baby when I go back to work but I'm uncomfortable with it knowing he is around and knowing he is a racist. I don't want to upset my mum but I feel I need to raise it. WWYD?