Why does bad behavior amongst believers keep people away from religion?

Why does bad behavior amongst believers keep people away from religion? I get being scandalized that the faith is not producing the intended effects or being repulsed by hypocrisy (whether real or perceived), but are there other reasons?

Also worth asking is whether the bad behavior that has been observed is true, actual, scandalous hypocrisy or simply falling victim to human weakness and son.

Why does bad behavior amongst believers keep people away from religion?
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