Nobody is “convinced by poor therapists that their parents have been abusive” when they have loving, kind families. If you believe that is the case then, as the OP stated, please provide the specific examples where adult children of parents who have provided them with wonderful childhoods, weren’t neglected or abused and instead had warm, loving, supportive, kind and respectful treatment from their parents suddenly ceased all contact with their parents.
I have never come across a single such case personally, but of course such a case may exist. Perhaps you will enlighten us with a story of one… preferably a tale of something that actually happened.
I’m afraid it isn’t remotely believable that one day a child who had an idyllic childhood just woke up with their alarm clock at 7am and “lost all empathy” and decided “I know what I’ll do today, I’ll cut off my relationship with my parents forever! That’ll be fun!”, suddenly made allegedly “sweeping judgements” out of nowhere (ironic, from someone making generalised comments and yet refusing to provide the specifics of the situation to which they are referring, but quite happy to imply that it must be some failing on the part of the children and the parent <cough - you> is allegedly blameless - precisely what the OP was referring to in her original post).
How can anybody “look at the reasons why” when you refuse to discuss them and prefer to insinuate that your child is to blame and, what? Woke up one day and decided it would be a laugh to cut off contact with their supposedly loving family for no reason?
If you actually have any explanation then you could respond to the OP’s post properly and tell us what it is. Or, true to form for all such parents I’ve ever encountered, you could continue to pretend you are the victim and attempt to blame your child, their therapist, their partner or the moon and assert that you weren’t a bad parent at all (while putting the word “bad” in inverted commas, of course).
It’s not “complex” at all. It’s very transparent.
It would be interesting to hear your definitions of “good” and “bad” parenting. But I bet we won’t hear those, either.