I (24f) am going to break up with my fiance (26m) over his best man choice

My fiance proposed June 13, 2020. (He saved his money from working 3 jobs and bought me a beautiful ring, I wanted to cry when I saw it) <br><br>Well it's been really hard to have any wedding planning because of COVID and its been really hard to make a plan since we cannot plan anything. However, he has told me who he wants as best man. Paul. Paul is his best friend since he was born. I met Paul a few months ago before my fiance asked me to marry him. Paul is from Texas but he stays in our state a few times a year because he works in the oil industry. His company pays for his hotel and he goes home on the weekends. I only met Paul for the first time in person in December 2019 (Paul goes home for Christmas and doesn't come back until new years) but Paul and my fiance have been talking for years. I am chinese, and Paul is very ignorant. I don't think he's racist just ignorant. He keeps referring to me as his "rice wife" and keeps calling me "sugatai" (I'm sure he meant sugatai from Mulan). He found it hilarious. (I think he was a little drunk). I am not chinese, but I am of chinese descent. Also, he keeps teasing me about eating dogs. He says it's funny and doesn't mean anything by it. He says his jokes are innocent but I am getting really annoyed with him calling me rice wife. <br><br>My fiance says it's nothing to be worried about. He says Paul is just a jokester and doesn't mean anything by it. He says I need to toughen up and that I'm being too sensitive. I feel bad because now I don't want Paul as best man. Paul is in Texas now (because of the virus) and is staying there. I told my fiance that I really don't want Paul to be best man because I don't like him. I am really annoyed by Paul's jokes and I don't want him on my wedding day to embarrass me. My fiance argues that Paul is his best friend and he can't say no. If he says no, Paul will feel bad and my fiance will lose his best friend. I told him "what if I don't invite my maid of honor?" He said that it's not the same. His parents said that it's tradition to have your best friend as best man. I told him I don't want to marry him if Paul is going to be best man. He said I was being dramatic. I am really annoyed that he doesn't believe me. Even his parents don't believe me when I told them that Paul called me rice wife. They say it's just a joke. I told them I've been called a chink before but they say that's not the same. I'm so angry right now. <br><br>So I am seriously considering calling off our engagement. I don't want to marry someone who doesn't believe me. I am also going to break down and cry if Paul calls me rice wife at my wedding. Even if my fiance chooses me over Paul, I am going to feel awkward calling off my wedding and calling off the engagement. I am so angry right now.