I abhor the behaviour of H&M. M behaviour in particular I find (if even half true) lacking in all conscientious and sincerity and frankly think she may really have a personality disorder
That said:
I do think the RF have to be pragmatic and meet H&M halfway at least.
What meg wants and expects is completely transparent. She wants A lister American fame. She doesn't want the arguably greater and more refined fame of simply being a British Royal.
She wants to trade on their royal status. And build an empire on it. If not her then through her children's royal titles and standing.
They both want to live in the manner they've became accustomed to.
In order to take the heat out of the fire and kill the book which is a revenue spinner, and shut down further embarrassing revelations, the Royal family should give them a large chunk of what they want.
Make Archie and Lilli HRH at least.
Loosen up restrictions on merching their status. Give them roles to play
Give them some armed security when they come to the UK. Stop quibbling on small stuff. Tell the media to back off them a bit. Be a dysfunctional family that works because it has to, like other unfortunate people up and down the country.
Otherwise I really fear that they will undermine the RF to a huge degree.