Casting those who question dogma as the other (conservative or "alt-right", commonly) is an effective silencing and compliance technique. "You're not one of us if you don't stay in lockstep" has a real chilling effect and is doing serious damage to the left. Obama warned about this too, but unfortunately wasn't well heeded: https://www.youtube.com/watch?v=qaHLd8de6nM

It's also intellectually dishonest. Most (all?) of the cited authors are liberals. James Lindsay, liberal professor. John McWhorter, liberal professor. I'm pretty sure Jon Haidt and Paul G are liberal-minded. For random commenters on HN, you don't know what their leaning is nor does it automatically mean disqualification.

And it's worth noting that John McWhorter specializes in linguistics and has written books on language and race relations. He noticed the religious aspect of this years ago. Here he is on CNN back in 2015 making the point: https://www.youtube.com/watch?v=hGJbrLs_8_0