Back in the “Golden Age of Science Fiction,” all the leading characters were light-skinned by implication. Well, all the human characters. The aliens were often green or blue. It wasn’t that the authors set out to portray white-only casts or mentioned every character’s appearance; it was just the default, and most writers (themselves light-skinned) rarely thought about it.

The situation slowly changed. Heinlein’s Starship Troopers, published in 1959, presented a thoroughly international and multi-ethnic military. We’ve reached the point where characters of all physical types and ethnic origins appear in SF. It’s happened in nearly all kinds of fiction; I’m focusing on SF because it’s what I’m familiar with.

But now there’s a nasty push back. Some people want fiction re-segregated. At first I thought it was just a fringe movement with no significance, but it’s gaining in influence. I keep seeing would-be writers apologetically posting to Reddit, asking whether it’s OK for their stories to have characters whose skin color doesn’t match their own. The responses are overwhelmingly “yes,” so it’s still on the fringe, but it’s a toxic idea that needs firm rejection.
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