I've listened to a LOT of Terrence McKenna, so I'm very familiar with what you're talking about. But I don't buy everything he said. Words definitely have a huge influence on reality, and I think you might even say that words create aspects of reality or even whole realities. But I'd stop short of saying words create reality, as if there is only one true objective reality that doesn't exist without words.
And I say this from my own experience of things that I simply can't describe in words. Psychedelic and otherwise.
Anyway, what do you think is the impact of the ubiquitous use of the word "nigger" or "nigga" in pop culture on the realities of the millions of fans of non-African descent who consume it? It seems to me that if n-g words imply "less than," and a person idolizes that, it might influence that person to see their self as "less than less than."
Great article. Made me think. By the way, you forgot to mention "neglige" in your list. I guess it got its name because it's a negligible amount of cloth to cover the body? It would seem that negatives aren't always negative.