There are many, many libraries that have sections that have an almost military-level protection (protected atmosphere, security, and so on) I think humanity has done a good job in general on this front
Yeah, and where exactly are those libraries? Are they in safe places that won't be obliterated if a war breaks out? I don't think so; they're mostly in the most likely to be targeted locations.
If humans were serious about protecting knowledge, they'd put these libraries on Svalbard or in Antarctica, or better yet in a lava tube on the Moon.
