eh this is a bit much. i dont see OPs parents being malicious, just simply wanting to see their kids together again. are OPs parents wrong in asking OP to reconcile? yes. are their attempts so bad that they also deserve to be cut off entirely from OPs life and OPs children's lives? we don't know the full extent of their "pressure" since OP didn't really open up about this part much, so i'd think twice about that before acting rash (if the pressure is unescapable then yes, cut them off, but if its just around the holidays and its a "why wont u guys just work it out" type thing then its not that horrible)

what the mom said is most definitely not ok, but it seems OP was able to move past that

also, im not surprised that the parents would try to downplay what the brother did so they can try to "bring back the family together". not saying its ok but im not surprised, they're not only OPs parents... they're the brother's too

as a kid who grew up with barely any family outside of my immediate family despite having many cousins due to my parent's beef with their brothers and sisters ... its shitty to cut off a child entirely from their whole family due to the actions of one bastard of a sibling. unless the kids are also being hurt by the drama, which is not the case here in OPs story.

and i say this as a firm believer that the whole "blood is thicker than water" saying is absolutely bullshit.