How do you be civil with someone like my father? Any tips appreciated.

My dad is a corporate attorney but is about to retire. He made a lot of money during his 30+ year career, and there is something to be said for that. He is self made and basically came from nothing. He now owns multiple properties all around the world. However, he’s also in my opinion a HORRIBLE man. When my father would come home to greet me and my brother when we were kids, he’d say “what are you fags up to?” or “what are you pussies doing?”. We just wanted to be happy to see our dad at the end of the day. Our mom was not in the picture so it was only him. Hes obsessed with working out and he hates “fat” people. He’s also extremely racist. When we were kids if there was a mess we forgot to clean up he would immediately yell at us about how it looked like black people lived in his house. I can’t even repeat specifically the racial things he said because they make me so uncomfortable. A couple times when we got hurt as teenagers and ended up in the hospital he would just not show up to get us. It turned out he was with his girlfriends all night. We called him many times when that happened and he just wouldn’t pick up. One particular instance was really bad because the guy in the bed next to me was dying. I heard him going through the death rattle all night. I was 17 at the time. Later on when I got into relationships he had nothing but horrible things to say about women and how dumb they were. he would always tell me that I was “the boss, the man” in the relationship and that I got tell my partner what to do. When I got into my career (teaching) he relentlessly made fun of how little money I made. My friends and I laugh about it but he lashed out at me the other day and said I was “a beta” and that I “needed to be a sigma like him”. My friends thought I was making it up lol. What kind of crazy is this guy? I want to have a better idea so that I can manage him around my son.