Libraries are still valuable to society. Get rid of the rabid Leftist lesbian culture that dominates them everywhere (and the bizarre perverts reading to children). A security guard herding the homeless would also be a big help.
The only positive thing Dewey contributed was his decimal classification for books.
I’d be ok with purging our libraries of Leftists. But how does one identify who to purge? Perhaps show pictures of little boys and measure brain waves - if they go into a fit of rage, then, yea, they’re Lesbos.