This is a compelling and valid interpretation of the events of the movies as they're presented, but... I very much doubt that a lot of that was actually intended by the writers and directors.
I think it was very intentional. Case in point, the famous Cap monologue from the Civil War comic. And, I'll toss in these couple video essays that make some key points. This on the Russo brothers, Markus, and McFeely exploring the conflict of postmodernism versus traditionalism, identity and politics, and patriotism versus nationalism, in post-9/11 and post-social media America:
And, this one discussing the trilogy from a broader perspective:
...and I really, really wish I could find the video essay by a cinematographer, who makes some
damned good points about the visual storytelling in the Russo brothers films. Chiefly, the shots, angles, and desaturation of the latter two (but also key mention on costuming) creating more visually claustrophobic and darker films to implicitly reference Rogers' mindset and worldview of having gone from an idealistic army volunteer in World War II, to a disillusioned, frustrated, and socially isolated operator in post-9/11 America fighting for shit he doesn't really believe in, on behalf of a country that either moved on from (or never believed in) what he
did believe in. In such granularization and stark detail that even the action scenes were intentionally shot differently -- from Joe Johnston's nostalgic golden era war film cinematography, to the Russo brothers' Bourne-inspired shots, angles, pacing and editing, and shaky-cam.
Hell, Markus and McFeely wrote the entire Cap trilogy, and proceeded to write IW and Endgame. If anyone would have brought Rogers' nature as a patriotic critical thinker opposed to nationalist, to his final appearance, it was them -- and they did.
I have zero interest in these shows, but I just saw the trailers for House of the Dragon and Rings of Power, then I checked their IMDb pages to make sure. It's just more of the same, but the new Legolas is black now, that's about it...
The problem isn't so much that non-white, non-male, actors are cast in traditionally white and/or male roles, it's those actors are used as shields by shitty writers and producers against rightful criticism. That criticism generally being shitty writers and producers use fictional IP's as personal soapboxes to write political manifestos, not compelling stories.
Nearly everyone else is white. Oh no, Klingonarnia isn't 100% white like the books. It's all fantasy nonsense. The Fast and Furious movies are more "woke" than this.
Now, here's the irony particularly about Rings of Power and Tolkien.
That whole "elves are Nazis" trope
came from Tolkien. Specifically, the Noldori tendency in the First Age to oppress and/or exterminatus other elf clans not particularly into seeing trees or getting themselves killed over rocks. To the point they -- literally -- were told to get the fuck out of elf-heaven and never return by their own gods after shitting up the place with betrayal and murder.
Galadriel herself was one of the biggest shitheads on Arda, for chrissake. Literally the only reason she left Aman in the first place was some manifest destiny bullshit, wanting to make her own elven empire, and she ignored multiple kinslayings, lied right to literal gods' faces about it, and nope'd right out of a war that destroyed a continent to do it. Any appearance by her in a First and Second Age series or film that doesn't involve her talking mad shit right up until the point people start getting stabbed, then "stepping out for a pack of smokes", is basically a massive 180 on the character. Cobra Commander had a stronger stomach for a tough fight than fuckin' Galadriel in the First and Second Age.
Meanwhile there are 100% dark-skinned "free peoples" in the damned books. And not the "Tolkien's racist, tee-hee, the only dark-skinned characters are evil" way. It also happens to be the case that of the...three?...controversially-cast characters in the series, only one of them happens to be correct while it would have taken zero effort by writers who knew what the fuck they were doing, to integrate dark-skinned characters while remaining consistent with Tolkien's work.