Keep moving those goalposts, daddy. 🥵 First you claim marxist literature is never purchased by the libraries, which could be easily disproved just by clicking the link I gave you. Then you imply they don’t stock enough, even though according to the catalogue, as I’ve already said, they “hold 168 book by or about Karl Marx”, including multiple copies of the same book (the abovementioned CotGP has 4 copies, an abridged edition of Capital has 49 copies, etc., not even getting into counting the marxist literature not written by Marx).
But it appears you expect the American public library system to lead the communist revolution, so discussing even banal data such as how many books are stocked by a library is probably pointless.