Many of the things we are supposed to think about race are so obviously wrong you wonder if anyone believes them.

We’re supposed to think Europeans are the only people to come up with the idea of race.

Ibn Khaldun, one of the great philosophers of the Middle Ages, wrote: “The Negro nations are submissive to slavery, because Negroes have little that is essentially human and have attributes that are quite similar to those of dumb animals.”

In the 10th century, Abu Firas al-Hamadani complained that “the infants dropped from the wombs of Slavs,” were “blanched, and leprous colored.” But Africans were worse: They were “overdone in the womb until they are burned, so that the child comes out something between black, murky, malodorous, stinking, and crinkly-haired, with uneven limbs, deficient minds, and depraved passions.”

Arab traders brought black slaves to China during the Tang Dynasty. One Chinese wrote: “After having been kept a long time they begin to understand the language of human beings, though they themselves cannot speak it.”

Muslims prized white women as sex slaves. Edward Lane lived in Egypt from 1833 to 1835. He wrote that a white slave girl cost six to 20 times as much as a black slave girl.

That’s a high price for a social construct invented by Europeans.

Lefties would have you believe that throughout history, when an Asian met an African, he said to himself, “Gee, he looks and acts and thinks just like me.”

But then, along came white people, invented the false idea of race and, to quote Time magazine, we “engineered the most complete and enduring dehumanization of a people in history.”

Do they believe this stuff, or do they deliberately lie to us? In either case, it’s pure baloney. I hope they choke on it.