I think you've done the right thing moving away. Sometimes you need to get away from family, physically and emotionally, so you can find yourself and come back stronger if you choose to.

It's not about abandoning them, it's about finding yourself.

I say this as someone who's been harassed by a family member who very recently said they were "ashamed to be related to me". It would have bothered me a few years back but now I felt distanced from it. It's their issue, not mine and I don't feel ashamed of myself or responsible for their shame.