I think there's a lot of self-selection going on with the cathegory of estranged parents who blame their kids. If you're the sort of person to reflect on your behaviour, take responsibility and change it because you realise you're hurting others, you're a lot less likely to end up with estranged kids in the first place.

If it does happen anyway, you're probably also less likely to be self-soothing with listicles about how it's definitely the fault of your ungrateful kids and whoever turned them against you.

I hope you're in a better spot now, and I'm glad you found the strength to demand better.