I doubt they even exist. "Modern" writers and studios just assume that until recently only straight white people have watched movies, everyone else was excluded. And they think if they replace white heroes with POC and include as much "gayness" as possible then there is a giant untapped audience who will start throwing money at them. But just because they (the modern studios) have a culture of racism, doesn't mean average movie going people are racists.
They are deconstructing existing stories and iconic characters, and don't understand why they are not getting the views. And on the rare occasion when through some fluke people who actually understand and like the IP end up in charge of a show for a period, the well is so poisoned that those still don't get views.
If I were Disney I'd take a step back, shut down all ongoing marvel, star wars, and other floundering projects. Wait 6-12 months during which they hire people who are fans of the IP first and foremost. And don't hire based on diversity, ideology, and inclusion. Make a giant ad campaign that you are turning a new leaf: "Forget every crap show we put out in the past 5 years, those are now decanonized, and we are doing it right this time." And then hope and pray that the original built in paying audience is not too alienated yet to win back.
Your average audience member isn't going to know what 'decanonized' means.
Also you presume that the writers/creators of the original IP created them in the way they did because that's how they felt the characters should be, not because that's how they felt the characters should be. Not saying you're wrong I'm right. Just putting it out there that there is room for modification and not every story has to be yours.
Overall I tend to agree, I want to see stories that fit with the characters I've known. BUT... I want to leave space for variants of these characters as well, however that works out. Girl, POC, Gay, Straight, Trans, and other spectrums of what makes us up as a people do need to be represented. Just having a super hero in a wheel chair does not equal inclusion.
Every child deserves the inspiration of imagination of heroes like them. I would even go on to postulate that having heroes that represent MORE than what we commonly have in the past (strong white guy, super hot, or super hot girl of some sort for strong white guy.).
Oh don't get me wrong! I want the SUPER hot girls back in outfits that leave little to the imagination. But I'm open to having MORE than that as well in movies.
Give me a spanning fight scene with a 'multiverse' barrier passing back and forth, Or the camera has sweeping vista changes with subtext for which multiverse we are seeing. Where there is a epic battle happening 'across the multiverse' at the same time... where we get to see Captain America, spider(man) and so on locked in a battle to save the multiverse where the camera pans through various multiverses and we get to see iterations that are representative of various races and peoples while maintaining the core as well.
Actually that would be awesome and a pretty good way to have diversity and inclusion without destruction or throwing out classic heroes that we all know and love.
Once you've made that then based on popularity and interest you could have further movies showing an bad (guy) hopping multiverses that each other the 'spider(men)' or I don't know... Iron(men) has to address. Hell even Captain Marvel you could rotate through various genders/races as you tell the story of the investigation/fight/whatever.
Would it get a little silly repeating that sort of story line... sure but you would have solo actor/actress versions as well.