Am I wrong for not wanting to meet my moms new boyfriend?

So my dad and mom have been divorced since I was born. My mom gets into a lot of relationships and one of her boyfriends ruined my childhood and another threatened to kill me and my siblings and was found with a knife in the next room. 3 out of 5 have been abusive assholes. Well she has a new one, and while my grandmother says he’s nice I still don’t want to meet him. I don’t care if he’s the nicest person ever, I want nothing to do with the guys my mom dates. It sounds a little harsh, and maybe it is, but I don’t think there’s anything wrong with me wanting to distance myself from that crap. I’m tired of meeting them. But my sister is on my ass for it. She says it would be horrible of me not to see him, my mom, and my grandmother when they drove 18 hours to see us. I’ll end up meeting him but it’s not because I want to, it’ll only be to see my mom and grandma, but I’m still angry about it. My sister acts like it’s just a guy but she doesn’t still have nightmares because of one of them and even my brother will avoid seeing our mom if one of her boyfriends is with her.

So is it wrong that I’m a bit angry and don’t want to meet him?