I dont like my partners family

Their mom was always super rude, and a little racist, towards me when we first began dating and when we got engaged. She was abusive when my partner was younger and continued to be verbally abusive as my partner grew up. It made afraid whenever they went home. Her mother even threatened to have me arrested over something completely ridiculous. I am not one to slut shame, but her sexual habits put her children in danger multiple points(not anymore,thank god). Some stories inwas told coyld have gotten her children taken away from her. I wish I had been around when it was the most dangerous because I would have called CPS in a heart beat. I could go on and on about her. I also am just not a fan of her brother. This is not as serious but he just irks me. All the "funny" and "cute" things he does while my partner and I are there just annoy the crap out of me. A lotof it is just downright rude too. I just really dislike being around them . And now that my partner and i are getting marriedI'm sstuck with them. I already dislike the holidays. But now I will be having to share the holidays with them as well. Dont need advice on all this. I'm just complaining. ugh.