I think Harry has a real emotional immaturity to him. A typical stunted growth/arrested development which is very understandable, his parents had a bad marriage, a very very public divorce, his mother died in horrific circumstances, continuous tumours of whether or not he is Charles's child (think he is) and was always the spare to the heir.
Add to that, he's not very intelligent and you have a recipe for disaster.
My issue with Meghan is nothing to do with her race, previous divorce, family estrangement, or the fact she is American. Nothing to do with the fact hey moved to America or stepped back from Royal duties. All reasonable things and I can totally understand why they might prefer life outside the Royal family.
It all could have been achieved and I suspect understood and accepted easily.
It's the manner in which M & H then set about damaging the Royal family, essentially public trashing them. Their version of events may even be true ( although lots of inaccuracies have been confirmed). It doesn't matter. There was no way the didn't realise the damage it would do and realise that it would completely alienate H from his family permanently. Oprah, Netflix, The book etc. Why? Driven only be 2 possible reasons, Harry's anger or Meghan's agenda.
A more supportive wife would have encouraged him to maintain a distance, emotionally untangle himself etc. but not to publically shame his family.
I can't help thinking he has regrets. He certainly doesn't look like the happy, spirited, charismatic man he was in the past. It's sad to see himself and William so far apart now. They are only 2 people who had the same childhood who could really understand each other.
I can't see it ending well & think Harry's mental frailty is concerning. Meghan appears stronger, more resilient etc. I don't even know what divorce means to them in terms of access to the children etc. If Harry was happy since he left, it would have been great but it's very clear the whole situation is talking it's tell. I think he sees himself as wronged but the Royal family, and sees his mother as the same. In fairness to him, there's a lot on all that. A horrible but highly predictable situation.