Nobody banned the sale of these books. The only argument any of the people who are crying their eyes out could make here is: we need open source decentralized bookselling to ensure that people who don't care about the bad feelings people have about these books can still buy these books. Every other argument is just weak and quite frankly, herdmentality of the right wing political sphere.
Monopolies are de-facto government bodies. It isn't that Ebay is administered by USG (although I'm sure Ebay has an NSA/DHS detachment); it's that it makes no difference to the user whether a government bans the sale of books on online flea markets or the only practical online flea market does.
If the only store within a 2-hour drive is walmart, walmart is your equivalent of the soviet centrally-planned economy.
