Just what makes you think Howards was racist? Not that I like any of his stuff but I never got the impression of racism.
It's an ongoing debate. Not all readers think him a racist, but some do. In
Man-Eaters of Zamboula (also called
Shadows in Zamboula), some of the villians are black African tribal types. So the argument is that Howard villianizes blacks.
In
Red Nails, Conan says that he does not like to have sex with black women. I take that as a preference of the character, but some see it as racism.
In
Queen of the Black Coast, Conan's love of his life, Belit (a white Arab racial type), clandestinely calls Conan away from a suspected trap, allowing several of her black crewmen (who worship her as a near goddess) to be killed in the trap. Conan doesn't even comment on the matter, and Belit morns not at all her lost crewmen. Again, here, some think this an example of Howard's racism. Also, again, I just think it's story-telling.
Howard never wrote (at least in the Conan stories I've read) about a black heroic character, but he did include blacks in his stories. And, many times those blacks were bad guys. But, not all the time. In the
Vale of Lost Women, Conan is chief of a black tribe in the Black Kingdoms.
So, the controversey wears on. I don't think much of it. I've never read anything of Howard's that I found even remotely racist. But, some can see shadows where there is light.
I mean, Tolkien didn't create a black hero in his universe, nor did he even create black characters. Yet, he's not considered a racist by some, but Howard is.
That kind of stuff boggles my mind.
Anyway, we're off topic here.