Is it more harmful than beneficial to teach children to believe without evidence?

I hesitated before I wrote ‘beneficial’ in the opening question because I was trying to think what is actually beneficial in believing without evidence and believing in spite of evidence to the contrary. The only beneficial thing I can think of is a social thing. You know, being part of a group that all believes the same stuff without evidence. But if the stuff without evidence that this hypothetical group believes is wrong, then the harm from this outweighs the benefit of being part of the group, doesn’t it? When this harm is added to more obvious harms like, children become gullible adults who get exploited by charlatans and con artists, children grow into adults who reject science in favor of myths and superstitious nonsense, children get molested by clergymen but never tell because they don’t want to harm their religion etc. These are all harms that occur directly from teaching children to believe without evidence, so surely this big mountain of harm from religion outweighs the tiny little molehill of benefit, right?