Let's talk source material.
K'Un L'un knows white folks too.
DAvos in his early iterations was a white guy
vs. the more appearances of other Asian characters in the opening arcs.
All the major characters in early Iron Fist were white, but on an Asian backdrop. Danny, the Meachums, and Jeryn Hogarth. Colleen Wing was clearly meant to be half-white, half-Chinese. (In actually, her mother was revealed at Japanese, making her half-Chinese, half-Japanese.)
Marvel slowly firmed up Davos and Colleen's designs until they recalled their Asian heritage (indeterminate in Davos' case).
You'll note there that Danny's father, Wendell Rand, is the impetus for Davos' ouster. K'un L'un is no stranger to non-Asian folk and that's pre-Immortal Iron Fist. Danny is the outsider because he's the outsider, not because he does not look like the rest.
This is why I kept pointing this out in earlier threads. Danny himself does not have to be white. It doesn't particularly add anything more to the story. The point was to not be white in K'un L'un, the point - one that carries forward with the character - is
he's not from K'un L'un and is ignorant of its larger history.
This doubled down upon given that Orson Randall exists post-Immortal Iron Fist. Orson Randall > Wendall Rand > Danny Rand; they should be used to white dudes.
Now, I don't have a problem Danny being white. That's the source material. I just have issues with the various incorrect arguments as to why he should be white. The only real reason is "because he is in the comics". One that becomes increasingly hard to make given the other changes in an adaptation. (Don't see many arguing vehemently for Colleen's hair to be bright red.)
Given it's an adaptation, I'm also fine with the change to K'un L'un. The mythical city should be primarily ethnic Tibetan and Chinese (the region has a ton of ethnic groups) given the place it appears in in our world, but it's a mythical city that a number of people have traveled to find and they don't seem to have any issue welcoming folks in. I've always been perplexed that K'un L'un has been shown as primarily Chinese, as it doesn't really fit with the region, but that's neither here nor there.
And let's be real, we're not getting a Shang Chi series.