Just my irrelevant two cents - but I think H&M's children would have been much better off staying in England and growing up in the "institution." AND all the other people they could get to know, at least to some extent: grandparents, uncle and aunt, great uncle Edward & great aunt Anne (and their, and Andrew's, kids/grankids) - yes, maybe most important of all, the cousins! They will grow up with NO ONE, belonging nowhere. I doubt they can even rely on their very damaged father and personality-disordered phony-of-a-human mother.
Maybe they have a little something in Grandma Doria, but I'm not sure of her stability - if she ever criticized her daughter, she'd be out the door like poor old grandpa Thomas (such as he is). And Samantha and her kids and whatever there is of Meghan's family - the children themselves will probably never have any idea! What a freakish upbringing.
Meanwhile, George, Charlotte, and Louis look like pretty happy kids to me. Will we ever even get a peek at Archie and Lilibet, at least in a healthy way. I doubt it. I think even Madonna managed a healthier environment for her kids, but I think I see similarities - or maybe Michael Jackson's? Oh I don't know, I'm rambling, sorry. But my heart is broken, mostly for Archie and Lilibet, and a little bit still for Harry, for being so damned STOOPID. He doesn't seem capable of maturing (hope I'm wrong). I have NO hope for Meghan.