If I understand what you’re using “religion” and “rationality” to mean, then I would agree with the first part. (In particular, I understand you to be referring exclusively to epistemic rationality.)
As for the second part, there are no doubt millions of sane people who tried. Hell, I’ve tried it myself. The difficulty is not in finding one, but rather in finding one who provides you with what you’re looking for.
If I understand what you’re using “religion” and “rationality” to mean, then I would agree with the first part. (In particular, I understand you to be referring exclusively to epistemic rationality.)
As for the second part, there are no doubt millions of sane people who tried. Hell, I’ve tried it myself. The difficulty is not in finding one, but rather in finding one who provides you with what you’re looking for.