If he is anything like his father I wouldn't never have had anything to do with him in the first place. Some of my family are racists but I make it clear to them that that behavior will NEVER be acceptable around me and if they start it I leave. A few I refuse to go out in public with because they sound like your boyfriend's father. Outside of my family, I don't associate with racists, period (And as for a partner,thankfully, I'm attracted to the opposite race).

I would get away fast.