Most of the media, leading the charge on the outrage, are people who consider themselves fans of the material, and claim they aren’t racist for being upset over the change, just mad that they didn’t respect source. Then you look over their channel and there is not one single video, where they do this, when source material is whitewashed. Even though there is plenty of that, in the stuff they claim they are only upset over, because the source material wasn’t respected.
These are the people who stoke this outrage, they often started as straight fan media, but found out ranting about people of color, and gay people, being in media made a lot more money. Communities centered around the fanbase, for these things, are hotbeds of this behavior. There is no way you can make this argument, about these people. The people introduced to the media, by the movies, get mad because of these people.
I don’t know how you can not know this, and claim enough familiarity with audience statitics to make your argument. So I agree with others saying you are likely going out of your way to make this seem not racist.
There absolutely was a conservative freak out over black Nick Fury. It happened when super hero comics were not full blown mainstream yet. Also before hyper centralized social media. So it wasn’t really a talking point outside of niche spaces. Like any specific anger, over a single character, it was drowned in the flood of the next outrages. After so many years it is now just who Nick Fury is, because he was black when super hero media truly broke into the mainstream. It is easier to get people mad about things they are used to, changing, rather than try to get them mad that Nick was made black before gen z really became the primary consumer of marvel media.
However, in 2001, it was a hot button issue at the comic book store. I heared many racist rants about it.