If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
The "control" argument predicts more specific things than the "rebellion" argument, and so is a more useful hypothesis. But then again, it's not the whole story at all (desire for community, actual belief, glaring cognitive biases), and once you start inserting caveats the testability goes way down. So I'd say neither argument is worth making.
The "control" argument predicts more specific things than the "rebellion" argument, and so is a more useful hypothesis.
Actually a rebellion argument also predicts something. It would predict that atheists also rebel against other social norms.