How do I tell my husband that I don't want to spend Christmas with his family?

We usually spend Christmas with my husband's family because I'm no contact with my womb woman and my dad passed away. I really don't like spending time with my in laws and my husband doesn't either. My husband's step dad was extremely abusive to my husband. He used to beat on him until he left home for college and his step brother SA'd my husband on multiple occasions (my husband was 13-17. His step brother was 19-23). My husband honestly seems to just not want to be without family because his mom made it clear she's picking them over him any day. My husband just excuses everything that happened to him saying he was bad so he deserved his step dad to hit him. When it comes to the sexual abuse he just talks about the ONE "nice" thing his step brother ever did for him. His step dad got drunk and hit him and threw him down stairs so his step brother bathed him and cleaned his wounds and didn't even "take advantage". I'm not sure if he's trauma bonded to his family but I can't stand being around any of them and thanksgiving was awful. His mom was pressing us about grandkids. We don't really want kids. She said a real woman gives her husband's children. I rolled my eyes. Step dad got drunk and drew a plate at my husband that shattered the wall right by his head. My husband has hit one of his depression episodes where he's depressed for days. I don't want this being my Christmas. I get I have no family and not seeing his family means it's just us but I can't deal with his family for a holiday that's supposed to be happy.