Leiter on the need for "religious orthodoxy" to "die[] out"

In this brief, bracing blog post, Prof. Brian Leiter (Chicago) states that "Until religious orthodoxy of whatever stripe dies out, humanity will be at risk, alas."  Hmmm.  Putting on my University of Chicago green-eye-shade, I'm pretty sure that -- going strictly on the evidence, of course -- humanity's smart welfarist move, behind the "veil of ignorance" and all that, is to prefer "religious orthodoxy" to the other, rival kinds.