There are terrible consequences to allow bs to be spouted anywhere, all the time. It doesn't let people to accept reality and move on. It gives them the illusion that maybe reality can be negated if you believe strongly enough.
German people have been able to move on the terrible thing they did, and made provisions to prevent that from ever happening again. Turkish people simply denied, they justified themselves and they didn't make any provision to avoid bs rule their lives. And they are back at it again with the Kurds, and now even renouncing to their best heritage, being the only secular democracy of the muslim world. Soon they won't even have that left.
Allowing for deception to be freely defended leaves people undefended against con artists... look at the homeopaths, the antivaxxers...