Your reasoning is shallow.
In the examples you give, the people are inciting themselves, because they are looking at other people exercising their self-ownership and attempting to deny it in preference for their own tyranny.
If you "err on the side of freedom", then you should have no problem with getting rid of all restrictions on ownership of weapons, explosives, poisons, samples of devastating diseases, or requiring purity of drugs, truth in advertising, safe slaughtering procedures, labeling of fruits and vegetables for pesticides, or throwing out speed limits, drivers' licenses, vehicle safety standards, housing codes, or -- most pertinent here because it's a direct parallel to what you're defending -- safety standards for toys. Let the manufacturers use lead paint! After all, we don't care if children are harmed!
What you're ignoring is that freedom ends where my neighbor's nose begins -- in other words, my liberty ends where harm to another is involved. And these stories do harm -- there is no avoiding that. They feed to desires of pedophiles. They help them convince themselves that abusing kids is okay. They may even tip some over the edge into being active pedophiles.
That's what you're supporting.
Shallow how? The examples I listed are legitimate and valid. They are not inciting themselves. They are being incited by what they see.
Yes I believe in regulations but a regulation is not an all out ban. Rather a regulation narrows the interpretation of an implementation of an idea or tangible policy. Regulations I can support. Arbitrary restrictions I don't support. So all of your hypothetical examples easily fall under the oversight of regulatory control.
I would have to disagree with you that just by reading a pedophile is more likely to offend. The book is nothing more than a collection of words. The problem here is the pedophile, not the pedophilic literature. Let's go after the pedophiles, not the literature. In no way am I defending the merits of such literature but I will defend its existence. As will I defend the existence of all literature:
"We can never be sure that the opinion we are endeavoring to stifle is a false opinion; and if we were sure, stifling it would be an evil still." ~John Stuart Mill, On Liberty, 1859
"The fact is that censorship always defeats its own purpose, for it creates, in the end, the kind of society that is incapable of exercising real discretion." ~Henry Steele Commager
"The only valid censorship of ideas is the right of people not to listen." ~Tommy Smothers
"Censorship reflects society's lack of confidence in itself. It is a hallmark of an authoritarian regime." ~Potter Stewart
"The peculiar evil of silencing the expression of an opinion is, that it is robbing the human race; posterity as well as the existing generation; those who dissent from the opinion, still more than those who hold it. If the opinion is right, they are deprived of the opportunity of exchanging error for truth: if wrong, they lose, what is almost as great a benefit, the clearer perception and livelier impression of truth, produced by its collision with error." ~John Stuart Mill, On Liberty, 1859
"Books won't stay banned. They won't burn. Ideas won't go to jail. In the long run of history, the censor and the inquisitor have always lost. The only weapon against bad ideas is better ideas." ~Alfred Whitney Griswold, New York Times, 24 February 1959
"Nature knows no indecencies; man invents them." ~Mark Twain, Notebook, 1935
"Censorship feeds the dirty mind more than the four-letter word itself." ~Dick Cavett
"The test of democracy is freedom of criticism." ~David Ben-Gurion
"If we don't believe in freedom of expression for people we despise, we don't believe in it at all." ~Noam Chomsky
"Take away the right to say "fuck" and you take away the right to say "fuck the government." ~Lenny Bruce
"The populist authoritarianism that is the downside of political correctness means that anyone, sometimes it seems like everyone, can proclaim their grief and have it acknowledged. The victim culture, every sufferer grasping for their own Holocaust, ensures that anyone who feels offended can call for moderation, for dilution, and in the end, as is all too often the case, for censorship. And censorship, that by-product of fear - stemming as it does not from some positive agenda, but from the desire to escape our own terrors and superstitions by imposing them on others - must surely be resisted." ~Jonathon Green, "Did You Say 'Offensive?'
"I disapprove of what you say, but I will defend to the death your right to say it." ~Evelyn Beatrice Hall, The Friends of Voltaire, 1906, a description of Voltaire's attitude, commonly misattributed to Voltaire, the closest of his documented sentiments being
"I detest what you write, but I would give my life to make it possible for you to continue to write." in a 1770 letter.