But religion as a real, testable phenomenon doesn't get more valid as one model of the physical world is discarded for a more accurate one. The Four Humors don'

But religion as a real, testable phenomenon doesn't get more valid as one model of the physical world is discarded for a more accurate one. The Four Humors don't make a comeback when we develop an understanding of antibiotics that renders previous assumptions false. You're treating religion as the natural fallback hypothesis, which should make it fairly easy to convince yourself that you're right.