I have done the same thing myself. I have no contact with two brothers and their wives. I keep contact with 4 other brothers and my sister. DENIAL - Don't Ever kNow that I Am Lying to myself. That's still at work with much of my family-of-origin.
I am working to focus on my own problems. Work on my marriage - deal with our debt - stay sober - get ready for our little baby coming in October. There's ONE thing for d*** sure - I will have a lot more control over what my child has to deal with - I will not be exposing her to the abusive behavior of my two siblings (or anyone else who believes in BS like "you have to EARN respect" - no thanks, says thotful)
Respect is not earned nor is it taken - it is given.