The Windsor/Sussex comparisons are so trite.
1)
Edward was King.
His stepping back from royal duties, precipitated a constitutional crisis, that shook the foundations of the UK government to the core.
Harry was sixth in line to the throne with almost certainly no chance of becoming sovereign.
Harry's actions didn't recall Parliament, and barely got more than 1 line of well-wishes from the Prime Minister.
2)
The roles they see for themselves differ.
I would say the Windsors were closer to socialites, with the cream of US society.
The Sussexes are focus is more akin to social justice warriors and are more likely to be seen with a Washington clique.
3)
Most importantly, Edward & Wallis never had children. Their focus was on each other and their mansion walls for the rest of their days.
Harry and Meghan have children, that alone means their lives aren't only for them. And for the next 18 years at least, they will both be responsible for 2 little babies.
The nucleus of their family will likely be a cornerstone of their marriage, just like it is for everyone else.
