Now this part is getting a little too carried away. It is one thing for libraries and bookstores to decide not to offer for borrowing or sale things that they disagree with. It is another (and overstepping imo) for Ebay to restrict individual people from selling to others goods that are not illegal or in violation of their other practical rules (no selling jewelry, monetary equivalents, etc). This falls into the cate…
If the library is publicly funded, then I don't really think this is OK. They might decide to not purchase additional copies of some books they disagree with, but I certainly don't want them to limit lending of what they have.
If the library takes no public money then they can obviously do whatever they want.