This is just... stupid...

Of course there's stupid people. A lot of them. It's simply dishonest, manipulative or plain stupid or say otherwise.

If this article was more insightful, thoughtful, etc it would be saying that a smart, decent, wise etc person wouldn't belittle anyone for the combination of innate intelligence and environmental factors that caused them to not be thoughtful, creative, able/willing to learn etc.

And they'd moreover perhaps even take the responsibility upon themselves to try to do something about it - addressing inequality, social and educational systems, changing culture, better family planning, and endless other things.