Yes
Too Early To Say
No
Perhaps when people say "unrelatable" they actually mean "unsympathetic."
Granted, it's still possible to tell interesting stories with unsympathetic characters if you know how. (The main cast of "It's Always Sunny in Philadelphia" are pretty terrible, but it's a comedy and their shenanigans usually always backfire on them.) Marvel (imo) should have instead leaned into the more less than noble aspects of royalty and politics instead of trying to cast them into the "persecuted superhero" archetype ala the X-Men. Perhaps, something more along the lines of Namor the Submariner. A character who is just as often the villain of a story as he is the hero.
"The White Queen welcomes you, TO DIE!"
"Never assign to malice what is adequately explained by stupidity or ignorance."
"Great stories will always return to their original forms"
"Nobody is more dangerous than he who imagines himself pure in heart; for his purity, by definition, is unassailable." James Baldwin
As featured guest stars they were often sympathetic. The whole Johnny/Crystal romance story is nothing less than a Marvel version of Romeo and Juliet. Medusa as reluctant, amnesiac villain was sympathetic, in those beginning years.
When they started expanding them into their series, back in the '70s, they tied them more into their Kree backstory and some of those stories had less to do with the individual characters.
I don't relate to them because I'm sympathetic. I relate to them because they are so unusual.
Sure, the kids were sympathetic, but the Montagues and Capulets were not. It was their ridiculous feud that was causing Verona all sorts of trouble!
The Royal family (generally) has all the wealth and power in their society. Instead of trying to play them like persecuted underdog superheroes they should play them more like the cast of "Dynasty."
"The White Queen welcomes you, TO DIE!"
I suppose they could be meaning "unsympathetic", that would at least make more sense in the context of what they are commenting on. I have always liked stoic, regal, aloof and somewhat unpredictable characters, which was something that immediately drew me to the Inhumans. And I think you are right, being unsympathetic (even though I still find the Royals to be sympathetic in a lot of cases) can work in a characters favor if presented correctly by the creators.
Britain's most popular comics character is Judge Dredd. He's about as sympathetic as strychnine.
Looking outside the world of comics, one of the characters in GRRM's work with the most fanatic fanbase is Stannis. He's a socially incompetent and emotionally isolated surly figure of resentment, who is prepared to have criminals burned alive in the name of a God he doesn't even believe in, because he thinks that God's priestess has power. Hell, I love him myself. (He's even less sympathetic in the show, but we're not at that point in the books yet.)
So yeah, being sympathetic is hardly a pre-condition for popularity, and I'd be interested in an unsympathetic portrayal of the Royal family. An intentionally unsympathetic one, anyway, not just because of a terrible event like IvX
Well, since the INhumans are replacing Mutants meme and the various comics and arcs that told the tale, these guys are pretty unsympatico. But that is not important to the story, maybe.
Remember Thunderbolts were disguised as heros but were evil-doers. Eventually the plot had things change and it was rather refreshing. I'm talking about the original series.