This is a very abstract conversation.
What are you getting at, Popa? I have a feeling you’re not suggesting that the government censor certain viewpoints. So maybe you’re referring to what we should teach children in school, or whether people should go to college (or non-frum colleges)?
Certainly, in the school context, we should not expose children to all points of view. They shouldn’t read apologetic literature trying to convince people to become Reform Jews or Xians. But should we teach them only one very narrow hashkafa, without teaching them about different viewpoints within Orthodoxy? I don’t think so.
People keep referring to the halacha, but what is it exactly? Does the Shulchan Aruch mention this? Regardless, can someone give a brief summary of the halacha? (And don’t just say “don’t read kefira” — that’s not specific enough.)