But the two types of relationship are so interconnected it can be difficult to separate them. What is the point of the York daughters being HRH? They are because of the 1917 Letters Patent, and in due course Archie and his sister will be too, for the same reason. Under the status quo, the royal title and style will not follow down to the next generation, so why single out Archie and deprive him? How does it really hurt to have him - and in due course his sister - bear the style and title? They might move back to the UK one day.
The York's would probably be in the same boat as Louise and James if they were being born into the family in 2021 ie Lady Beatrice and Lady Eugenie as opposed to princesses. The girls were born 30 odd years ago and a lot has changed since then.