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I think it is quite true that evolution resulted in humans with a predisposition to develop religions and also humans who have the capacity to develop critical thinking.  However, the manifestation of and maintenance of both, depend on various cultural influences.  Cultures evolve also but not exactly as biological evolution occurs.  In biology, the organisms that survive to reproduction, pass on their genetic info.  In cultural evolution, the cultural memes, practices, organizations, etc.  that survive and thrive pass on their information and the cultures that don’t do this as effectively, fade away.

Cultures that follow science and pass on the procedures and information of science have done pretty well in surviving and thriving and passing on its information.  Certain religious cultures have also done quite well in surviving, thriving and passing on their dogma.

One tactic by thriving cultures to expand is sometimes by opposing and diminishing other cultures’ development.