There is nothing in your posts that seems serious enough to go NC. Nothing
Doesn't that strike you as odd ? That a son would cut ties with his family over nothing ?
If my mother posted here you would be shocked about how a daughter could turn her back on her own mother over ... nothing. And you would conclude my foreign husband must have been a major operator in creating more than a decade of ongoing estrangement.
You'd never hear a word about the price I paid as my mother's weapon of choice from my teenage years on. How she was prepared to back me into a corner where I had to try and emulate a victim of incestual sexual abuse, because she was the only parent I had left and I couldn't lose her, betray her, by having her face charges of false accusations. So play acted the part she created for me, until still being that marionette even many many years later, took me to my limits of mental endurance and I had to choose my own son having an alive mother, over her continued efforts to pull my strings.
I'm not saying the OP is of my mother's ilk. Every word out her keyboard could be the gospel truth. But, it can be unsafe to arrive at such definitive conclusions as per where the blame must lie based on one version of the truth alone. And particularly so when it's an oddly "huge repercussions over nothing, breaks healthy, loving parent/child bond" version of the truth at that.
And when I say unsafe, I mean potentially unsafe for the OP.
Because we are all human, we can all make mistakes impulsively that spiral out of our control. And it's not unusual for people to sometimes find it hard to look at those mistakes in such details that the clarity of our errors hurts and hurts hard. It is human to turn away from them and minimise. We can sometimes need relative outsiders giving a hard side eye to create the motivation we need to pull off a carefully constructed scab and make an overdue inspection of the precise nature of the marks in the wound.
My mother has a cheerleading squad both online and off. They mean well, they mean very very well. Essentially they are kind people who feel for her and want her to feel better, have better. But they have unwittingly helped back her into a corner of her own, and then lock her in it. Because they never question why a child of a loving, normal behaving mother would cut ties ... for nothing.
Which means she never will either.
She is at the point now where I honestly think she believes her version of "nothing" to be true. Because it has been mirrored back to her so many times that it is unfair, she is blameless and my husband must be a secretly controlling git who arm twisted me into turning a minor chink here & there into an almighty chasm.
Heads neither of us wins, tails we both lose. Not when the game of truth is played like this.
We are both stuck fast in this limbo, that in all likelihood will only end for us when we get to die our way out of it. And while they certainly don't mean it to be that way, the people who accept a one sided account of an irrational, incomprehensible estrangement, over nothing, and tell her it's my husband, it's me, with complete conviction that they have understood the true nature of the problem.... have turned into a significant part of the glue holding us fixed in place.
I can't crawl into the OP's head and know how closely her posts match a more 360° reality. But I do know having her distance from her son reinforced at arms length is a real risk if there is any possibility she may have minimised her own part in how a healthy, loving child/parent bond shattered so spectacularly over .. nothing.
And I do believe the estrangement is causing her and will cause her far more pain than can ever be soothed by the balm of online people taking her side at face value, on the basis of just her version.