You're misunderstanding (or deliberately misrepresenting) what free-speech absolutists are saying. Nobody is saying that Facebook should be "forced" to host any particular content, any more than anybody is saying that homedepot.com should be forced to host any particular content. What we are saying is that Facebook is no longer a platform for free and open exchange of idea and is engaging in censorship - and it's open season to point out that everything that they _don't_ censor (e.g. calls for violence against politically unprotected groups) is something that they explicitly condone.