AITA for making my brother eat fast food he hates after trying to shame my parents for being fat?

My parents aren’t happy about me posting this so I’m using a burner. I was flamed for this on my main account where it was more obvious who I was.<br><br>My brother is 29 and I’m 20f. He’s always been very critical of people’s bodies. He will make fun of people’s bodies behind their backs if they are overweight. He doesn’t seem to care if the people he is making fun of happen to hear him. He has been doing this for years. Recently he roasted my mom for being overweight. She was crying. My dad is also overweight and has been for years but he roasted him too. Neither one of them are super fat, more like chubby. That did it for me. <br><br><br>I was visiting and he told me we’re going to a vegan restaurant because he’s vegan and he doesn’t want to eat anywhere else. I said ok but we need to make a stop at McDonald’s first. He hates McDonald’s. I asked him why he was requiring me to go to a vegan restaurant and he said it’s because he doesn’t want to eat shit so he only wants to eat at places that have healthy food. I told him I wanted to eat at McDonald’s and why aren’t we going there? He said because it’s shit and he wants to eat at a healthy restaurant to keep his body healthy. This is a repeated conversation we’ve had. I told him he was being a jerk and I hate eating at vegan restaurants and would rather eat dog shit. Just to prove my point I asked him why wasn’t he letting me pick the restaurant since I hate his choice? He said it’s his choice because he only wants to eat at places that serve healthy food. <br><br>So I got fed up and said so, opened up my bag and started eating fast food. He started flipping out because he thinks it’s gross. I finished my food and we left for the vegan place. I didn’t order anything and he asked if I was going to eat. I said no, fast food is shit and I don’t want to eat shit food. Then I told him that he was fat and I didn’t want to eat with a piece of shit like him. He flipped out and called me an asshole.