I'm naturally sympathetic to the sentiment, but this post fails to acknowledge, much less address, the major societal changes that have precipitated our current situation. Censorship is a reaction to our society's increasing inability to combat misinformation. Over the last 20 years, a huge, extremely influential right wing media establishment has sprung up. It has clearly demonstrated its ability to convince millions of people of things that are factually untrue, with less logic than repetition. (Ask Barack Obama, the Kenyan Muslim, about the utility of reasoning). I am worried about someone who makes an argument that gay people are evil, because it probably now means that a group of commentators have adopted that simple statement as a talking point. Furthermore, they've tacked on preposterous arguments, logical fallacies, and agreed to engage in Ad Hominem warfare against anyone who argues differently. It's been an extremely effective formula for persuading a huge portion, if not most of our society, into believing falsehoods.
Unfortunately, the John Stuart Mill marketplace of ideas is failing to distribute value as obviously as our economic marketplaces. The openness of communication made possible via technology has turned us all into Sophists. Efforts to confront and address this reality is peripheral at best. As long as this is true, censorship will be an appealing option to keep bad ideas from spreading. Is censorship worth the cost? I don't know, but I'd lean toward saying yes, while fully acknowledging that the cost is huge.