Lovecraft work probably wouldn’t have worked so well if it wasn’t his idiotic racist views since in a way a ton of his work is based on fearing the outsider and basically is racism in a super hyperbolic way
I never really thought about it that way, but you’ve got a solid point. The people fear the unknown, and the unknown acts in ways that provoke and reinforce that fear, turns it into cosmic horror. If you were to take away the Cosmic part, all that’s left is the fear of the unknown.