Why can't we just mandate people to send a copy of every publication to an UN Media Preservation Library and use something like redundant LTO tapes + Piql film

Why can't we just mandate people to send a copy of every publication to an UN Media Preservation Library and use something like redundant LTO tapes + Piql film to make sure stuff is never lost? Yes it's expensive but if we divide those expense across 8 billion people out becomes affordable.