https://www.bbc.co.uk/news/uk-62717696
"We upset Royal dynamic just by existing" - perlease, you're not a snot stain on the royal hanky, do you really think you have any effect?
TTT - Apart from your rather unpleasant analogy, it bears remembering that for millions of Americans, the duchess is a bona fide 'royal' person, so they hang on her every word.
Of course, most Brits have more of a sense of proportion about these things, but that does not mean that what Mrs Windsor says is ignored by everyone - it's not, more's the pity.
She didn't fit in with The Firm. Harry must have realised this would happen from the outset but appears not to have helped at all. Both now apparently blame their fathers.
Dysfunctional ? Yes, on three sides (i.e. the couple, his family, her family).