And you know this how?
On a serious note, I'm not even a particularly religious person, but there's not a single human society in existence (or even historically documented) that didn't develop religion of some sort. To me that would suggest that there's some long-term survival advantage.
Further, there are still boundaries to what science knows and always will be. The WHY questions, as opposed to the HOWs. As a mechanism of cultural psychology, I don't see a problem with religion attempting to give people a method to approach those questions.
Of course, as a postmodern western American, I find that religion that becomes pre- and proscriptive is oppressive and frankly obnoxious. But to throw out the baby with the bathwater by flat-out criticizing faith is overstepping pretty far.