Brigs, there is zero tolerance or excuse for what he said. He is a professional (is he?) and he should know better.
It was 1000% a racist slur. And it weights heavier as it comes from a “professional”.
People lost careers for saying “Jew mf” or similar and this is essentially the same thing. Any ethnic slur is an unacceptable thing and he was our guest.
You saying “Geordie bastard” it’s bad but I can understand it in a way, first because you too are a Geordie (I think) but put this aside you are not saying this in a professional environment.
The bar is high for millionaires and Bruce should apologize as a minimum. Not that he would be less of an asshole, but still.