But it seems to me that, “Oh, she was adopted by a black family,” isn’t really any more complicated an explanation than “Oh, she married a black guy.” It’s not like you have to do a whole flashback sequence showing the Storms at the adoption agency meeting little Susie for the first time, signing the papers, and bringing her home. You can “explain” it with a single line of dialogue, and you’re done.
I too have been reading comics a long time, and am aware of the legacy characters and the issues that brings up when those things are changed. But I saw someone on a blog say something that I will paraphrase here, to best of my recollection:
When Peter Parker started out, he was the sort of person who regularly wore suits and ties to high school, called women “gals” unironically, and had a classmate who fought in the Vietnam War. Why can we so easily accept Tobey Maguire, who did none of those things, as somehow playing “the same” character, but if you change the race of a character, you’ve suddenly made an irrevocable alteration that makes this character “not the same”? Is race really so fundamentally different from every other character trait? If so, must it be that way?
My wife is of a different race than me, and having married her has made me suddenly aware of a lot of these issues that I had previously had the luxury of not thinking about that much. Not all of our discussions have been comfortable for me, but they have been valuable.