I haven't had any contact with my parents since the day after Xmas. I haven't decided if and when I will see them again. Both of them have severe mental illness, untreated. Both have been abusive and neglectful. They don't know I was inpatient psych in early December. They have been so insanely controlling for all my life I just won't tell them.
I used to want to confront them. I finally realized my mother is completely incapable of understanding what she did. Her illness is so severe. I talked it over with my therapist. It came to the point where she asked me what realistically would I get out of it. They weren't going to admit, understand, or apologize. I thought it through and realized there was no upside for me personally. I abandoned the idea.
Totally cutting off parents is very difficult. Many times since that day I have felt terrible guilt and loneliness without them. I went to an al anon meeting and lost it afterward, because I missed my daddy, the alcoholic in the family.
However as an adult, you have every right to control access to your life, time, and emotions. It really is entirely your decision.
I feel very lucky because my formerly estranged sister and I have been reconciled. We have been growing closer for the past few years. But I knew things had changed when I was hypomanic in her kitchen sobbing about our parents. She hugged me very tight and her voice shook when she said to forget them. That we were what was left. That she, her husband, their child, and I were the family now. It was amazing and scary to realize I had a family member who actually loved me.