The human brain is not designed to handle that and is entirely abstract from normal pre-internet situations. Normal experience is low bandwidth input of mostly known self-reinforcing stimulus. A signal that's approximately analogous to 100% noise screamed at 120db does not improve the human condition. It just leads to mental breakdown and psychotic episodes.
Carefully filtered bias-reinforcing echo chambers are actually a good thing and are what we should be living the majority of our lives in. Having the option to not do that is a good thing, but it should not be the norm.
Libraries are not raw unfiltered samples of everyone's brains. They're carefully filtered and curated to provide maximal learning ability (with quiet environments to reduce distraction to allow focused learning).