Our GC will never know who we are or anything about us because their father, our youngest son estranged us. They'll never know about their GGM's, one set of GP's, uncles, aunts and cousins.
One day Archie and his sister's GF will be king and their uncle will take on the role in the future. They will know about the extended family that they never knew and they will have been taught that anyone is dispensable regardless of who they are, including your parents.
They will be taught that it's OK to point the finger of blame for anything and everything that has 'gone wrong' in their lives, for every bad decision they've ever made rather than accept any personal responsibility.
Rather than being taught how to build or mend bridges, they'll be taught how to destroy them and that no one else's pain or suffering is as important as their own.
H & M may well reap what they have sewn. I hope they don't. The pain of being knifed in the back by your own child is beyond understanding and description when it happens in private. To have it played out on the world stage, like a tawdry soap opera is IMO unforgivable and H & M may well find to their cost, that any form of reconciliation is the last thing on H's family's minds, and that this particular lesson in life is one they'll wish they never taught to their children.