Family dilemma

So I’ve been with my boyfriend for 6 years we’ve got a 2 year old and newborn. Every Christmas at his mums his WHOLE family come over at like 9am😣 this is not my vibe a chilled morning opening and playing with presents is my preference, but I do it for his sake. Although, it’s the family type that literally only see each other at Xmas again not my style, I see my family weekly. We see his mum once or twice a month. His dad isn’t in the picture. Anyways…. Here’s the dilemma….. Our baby is 2 months old his mum and one sister has met him. But he’s got 2 brothers and 2 sisters total they all live 10-30 minute drive. I don’t want my newborn to meet them on Christmas Day and I don’t want myself and my toddler wasting our special day with people who aren’t special to us x I don’t know how to handle this, please give advice am I being unreasonable and I’m happy to see my boyfriend’s mum but that’s it on his side. Even Boxing Day or whenever I cba with his family they clearly don’t care about our family. On Mother’s Day they didn’t even get their mum a card or see them. I’m too family orientated for this!