Freedom of information saved my life.
I'm gay. I also grew up in a Catholic school in a Catholic family in the south. I was also one of the first generation of queer people that had access to the internet during our formative years. It was my window into a different moral universe - one where I wasn't broken, or sick, or damaged. And America's willingness to allow this moral minority to carve out a small space for themselves, form communities, and ultimately take their case into the sunlight of the mainstream, and win, was invaluable. It's how moral progress is made.
I obviously don't think the people that want to put me in a gas chambers have much to improve our already existing morality. But I do know that any form of censorship has to pass the gay rights test. Would these tools, placed in the hands of a socially conservative, southern state government, circa 1960-2000, stop the gay rights movement from happening? If the answer is yes, then you need to consider the possibility that people just as bad are going to seize the apparatus you have created.