My extended family is EXTREMELY dysfunctional. When I was younger I often saw my aunts, uncles, grandparents and parents arguing with each other (sometimes all at once).
My immediate family dynamics are far healthier. I get on well with my siblings and parents. We enjoy each others company. We've had to work hard to get to a good place (redundancies, mum's illness etc).
My extended family have essentially said they're done with my parents but want my siblings and me to make an effort with them independently. I don't particularly like any extended family member - very difficult to forget how they've insulted/upset my parents (on this side). Surely they must recognise this. It's all just very awkward. I'm not saying my parents are blameless but they've gone above and beyond to provide for me.
I live a very busy life and when I have time I prefer to spend time doing things and being around people that make me feel good. AIBU to distance myself heavily from my extended family.
We come from a culture (think Greece, Italy etc) where family is everything.