I've picked out your post to respond to, though please accept any inferred criticisms are not directed at you or the decisions you've made, simply at everyone, including myself, who has had a problem of some kind in a close personal relationship and turned our backs, even partially, (so I'm just using your post to set up the discussion points I wish to make to anyone interested).
Firstly, so far as my own mother goes, (who btw I often now refer to as "my dear mother/late mother"), I turned my back or "put up walls between us", and certainly made many negative comments about her, from my teenage years onwards. I felt she intruded too much, or tried to control too much, and this was my defence you could say, though from her point of view it was probably her job as a mother to intrude or control. A small example of her controlling nature is the criticism she made of my taking my first real girlfriend to a cafe at lunchtime one Saturday, when I was twenty one years old, and her comment was, "You've only known her for two weeks"!,(how many weeks or months would have been appropriate to wait I never discovered

).
However, my argument here is really against the vilification of those who have loved us, not to justify it, (though saying that I know it would be foolish to suggest no one should ever turn against a formerly close family member, for example following divorce it can be the only way to preserve your peace of mind).
What I'm saying is the vilification of anyone who has truly loved us, contains this element without question, "putting yourself first", and putting yourself first for whatever reason, where no space whatever can be permitted for whoever it might be in your life, (regardless of how this might effect them).
Good will in life is very important to all of us in all kinds of circumstances in life, (my father paid a great deal of his money to the people whose farm he took over, and this money was paid not just for the goods and chattels on the farm, but the " goodwill" it is assumed, comes with taking over a business like that when someone retires).
When anyone turns their backs completely, leaving no room for any relationship or reconciliation, or sorting out misunderstandings, all possible good will is jettisoned isn't it, and this must leave the world a colder place, (less loving place perhaps).
Those we've fallen out with to this extent had their own point of view and reasons for behaving as they did, but do all who have vilified us, and become "essential dead to us", have to have the same response in return?
This is my feeling here, that rejection of another formerly close human being can become so common place it almost become de riguer!
I listened to a radio show yesterday where a young woman made these comments in a soap opera programme concerning her stepfather and biological father, in response to criticism of the stepfather by her friend, "He chose to be my dad, he didn't have to be my dad, not like that waste of space my biological dad"!
You may wonder why a throw away comment like that in a fictional programme might matter to anyone, but very often social issues are dealt with in these kinds of programmes, and the judging or harshly judging of patents, and the right to decide who ones parent might be, is promoted I believe in shows like these.
I probably won't listen to the show again, (not because of that throw away line), simply because I don't follow soap operas, but I'm not the target audience they wish to influence am I, so its this I object to, the vilification, the right to judge, the assumed moral superiority!