So...you do know that, like I said in the part you cut out, there were multiple species of humans that clearly had intelligence and the ability to create and use tools, right?
And that those species were actually present in the same places, at the same times, for centuries or millennia?
And that modern-day human beings have some of the DNA from these two species (Denisovans and Neanderthals), which conclusively proves that not only did we live alongside them, we successfully produced offspring with them, offspring who subsequently must have integrated into our ancestors' societies?
You and others keep harping on this "intelligence ABSOLUTELY COULD NOT POSSIBLY permit multiple intelligent species at the same time." But the fact his, in actual Earth history, that happened. Indeed, it might have been a thing for longer than all of recorded human history. (Recorded human history began ca. 4th millennium BC; Neanderthal and Anatomically Modern Humans apparently lived together for at least twice as long, possibly pushing ten times as long, with no known paleontological evidence that the two populations specially targeted one another for conflict.)
Answering this question is one of the interesting parts of crafting a setting! There is not, and should not be, one singular answer.
I agree that they aren't the same.
That doesn't mean they don't happen together--nor that the ways one expresses one's opinion cannot be derogatory, whether or not one intends for them to be.