Anyone else dislike having SKs around their family?

My family (parents and siblings) are my safe space, while step life is the bane of my existance, so I guess I find it uncomfortable when those worlds converge.

My family are always warm and hospitable when we visit with SD11. She has an intense and challenging personality that can make other kids uncomfortable, but my neices and nephew still make an effort with her.

She is a perpetual victim and negative about everyone (a trait DH has finally acknowledged and is trying to correct), so will find something to complain about after every gathering, which I find infuriating. I guess I feel protective over my family.

We have an ours baby now and I want him to have a healthy, positive relationship with his extended family, which I don’t want SD to negatively influence, so I’m starting to prioritise visits alone with my son.

Most SPs seem like they are trying to cultivate a close relationship between their SKs and family of origin - am I alone in gritting my teeth when they’re together, and wanting to keep things as separate as possible while still remaining somewhat functional?