This is part of the thing that makes me drag my feet on the book. It's difficult to work on book trying to examine Lovecraft's prejudices and how they influenced his fiction in detail when folks don't even want to engage with the idea beyond the common-internet-knowledge level.
I mean, I could take this apart argument by argument - Abdul Alhazred was insane, not evil; a lot of Lovecraft's horror takes place relatively close to home, not far away; Native Americans are almost never the antagonists (only once, really, and they were the victims getting revenge!) Etc.
But why?
Once you internalize the "all the horror in Lovecraft was a metaphor for racism" meme, you're cooked as a reader, unable to perceive that Lovecraft was also afraid of things like "being alone in the Arctic" and "dying"