I may be a minority in this view but I feel far more antipathy towards Harry than Meghan for the current mess. She may or may not be the unpleasant character many think she is but regardless it's really difficult marrying in to that family.
So many of the early issues seem to be rooted in him doing a terrible job of explaining how things work or even straight up lying/minimising about how it would be and what was expected of her.
I wouldn't be shocked if he had told her before the wedding she would only have to do a couple of years of the boring stuff then they would easily be able to leave and do the hybrid thing from the US/Canada.
He seems utterly self absorbed and I bet not an easy man to be married to. As time goes on it's more and more like the Duke of Windsor situation and the desire to build a rival court abroad. I don't think Harry is smart enough to navigate the world stage wisely without the unseen hand of the palace or foreign office and could be a diplomatic disaster waiting to happen.
Like the DoW situation being cut adrift opens the door to malign influences and frankly creates a headache for the government of the day. Which is why the DoW continued to receive an allowance despite not being deserving of it.
Wallis Simpson always got a lot of the blame for that situation but much of what I've read suggests she spent her time appeasing and soothing the man-child ex King she foolishly married and then had years to repent in leisure.