Which website contains “you have political opinions we dislike” as a valid reason for terminating service? Unless you are arguing that threats of violence are valid political opinions.
What's interesting is that this is a new manifestation of the free speech argument, from new social and political quarters. Prior to this version of the free speech debate, the defenders of free speech would, say, donate to ACLU, oppose laws that criminalize protests, express concern over authoritarian countries jailing reporters, oppose prosecution of whistleblowers, oppose consolidation of corporate media, etc.
But this new constituency emerged after events like Gamergate and Charlottesville protests, and they show up to defend participants in events like those but can't be mobilized to become active in other issues that historically have been ones where people become involved out of principle.
