My dad is a racist. [I Need Advice]

So, we just watched the verdict of the Derek Chauvin trial, and I was almost in tears, happy that he was convicted. My dad starts talking about how there’s another camera angle of the video of him kneeing on Floyd and that he wasn’t on his neck. My dad is acting like he wants to prove that a white cop wouldn’t murder a black man. My dad also is racist towards Arabs, thinking that they’ll be dangerous which is so wrong. It pisses me off, and I almost don’t want to have a relationship with him anymore. Any advice?