The articles rang so true for me. I couldn't read the comment from the mother realising she was abusive, its infected with a trojan. Some of you might need a quick virus scan.
I could tick pretty much every box on the two articles. Silent treatments, guilt trips, and being made to feel that I had to make my parents happy was my childhood.
It is really hard not to repeat what was done to us. Even now if I feel hurt, I feel an urge to withdraw. I am aware and try to control it. I don't ever want anyone to feel like I don't love them simply because of a hurtful word.
If you read the articles and find that some of your behaviour is there, try not to defend / justify or get angry at it. Instead just realise that we could be hurting our children and attempt to fix it. I showed an article to a coworker and he was instantly horrified to discover that he had been doing some of the behaviours to his girlfriend. He immediately told her, apologised and promised to try and change it.
When I tried to talk to my mum about past behaviours she was defensive. Even when questioning why she continued to leave me with a male that I told her had abused me (I was 3) and instantly she was defensive and saying it wasn't her fault. Not once did she ever show any guilt or empathy.
We are all human and I want to say every one can sometimes be dysfunctional, but I can't say that for certain. However as long as we recognise and try to change our behaviour so it doesn't hurt others, that's the important part. If my mum had even tried to show some remorse or empathy, then we could work on our relationship but no, the closest she came to remorse was 'we should have let you be parents because we didn't realise you would take the grandkids away.' Everything was focused on herself and nothing on our feelings.
We don't know if its more common that estrangement happens because of abusive parents. There is no study or evidence for this. I have actually seen the abusive DIL side of it (if MIL didn't pay all their bills, she would stop her seeing grandchildren). We view everything through our own window of our experiences and knowledge. There is always bias. I think it is a little unfair to say that the mum is a unicorn of EPs, honestly we don't know. She would more likely be a unicorn of abusive parents though.