My younger brother is a sociopath; I cut him out of my life entirely in 2004 or so, and if he ever managed to track me down and show up on my doorstep, I'd need to find a way to hide the body. He hurts everyone around him.

My older sister is smart, but batshit crazy. She's deeply religious, but also believes in bullshit like iridology, hoeopathy, chiropratic care (at the age of 50-ish, she just started school for that nonsense), essential oils, and so on. We have pretty much nothing in common aside from language at this point.

My younger sister is... Just kinda there. Again, not a lot in common. She's a decent person, but we were never all that close as kids, and that's deepened as I've been older and now live 1500 miles away from everyone else.

I'm also autistic; family connections don't have an inherent value to me. I don't believe in blood meaning more than anything else, or that you do anything for your family; I choose to have that kind of relationship by choice, not due to an accident of birth.