I disagree that Harry and Meghan didn't want titles for their kids.
I strongly believe that they didn't want the titles for the children of a Duke. Harry saw William's younger kids elevated and he wanted the same for his own children. When H&M were told no, they pitch a fit and either said 'well, then don't give them any', or just flat out refused to use the ones Archie and Lilibet were actually allowed.
That's the way they seem to work. Despite not having the same position in the hierarchy as W&K, they were determined to be treated equally and pouted when they weren't.
Yep, they want those Prince and Princess titles, otherwise it would never have been brought up in the first place.
TBH though I think Charles has already made his "Sovereign's Will" on the matter pretty clear. In the same speech that he declared William POW, he mention Harry and Meghan and their kids without titles and nothing has changed since then. We have also had discussions on whether the LPs automatically apply to great grandchildren who become grandchildren since it hasn't happened since 1917. I should think that he is looking to avoid and even worse situation than the one that erupted in Denmark
As far as Harry saying that he was born in case "Willy" needed a kidney, Lion Alive that manchild has problems, has there ever been such a "victim". Many regular families wish for more than one child and it's not life insurance for the first one. I don' think the reason HLM and the DOE had 4 kids was to provide the best chance of organ donation for Charles.