I forgot this part. It’s a feable slippery hole argument. After all, can you advocate for killing the jews, for instance, in your country? If you can’t legally, don’t you think it’s dangerous since nobody knows what could be banned next?
Why do you believe that a democratic government would forbid books which include ideas it considers remotely dangerous just because a book which his considered by the overwhelming majority of the citizens as actually offensive and dangerous? If the government intend to go that way, it means that you aren’t anymore living in a democratic country anyway. And forbidding books won’t be a cause but a consequence.
I’m going to give you an example : I suppose pornographic material depicting childrens is forbidden in the US. Very dangerous…Perhaps tomorrow all remotely erotic material will be forbidden (like a picture where you can see the ankle or the face of a woman). And later anything which could be deemeed offensive by some church. Or could contain ideas that are dangerous for the stability of the nation. Like critics about the government policies? Especially in the current period. It happens that several websites have been closed because they were advocating for terrorist activities…Isn’t it a dangerous precedent? What could happen next?
But you could imagine whatever else : the supreme court deciding to interpret the constitution in the most silly ways, without any consideration for its actual content or the will of the people. Most politicians waking up tomorrow and changing the constitution, transforming the governors in hereditary kings under the rule of the emperor Bush I°. The army organizing a military coup, whatever…
Why do you think that these scenarii are highly unlikely? Probably for the same reason I think that forbidding “Mein Kampf” and books about painting svastikas on the synagogues doesn’t carry the risk that any book containing any idea that could be considered as remotely dangerous will be forbidden too…
On the other hand, if you’re ready to advocate for child pornography, libels, death threats, calls for insurrection, calling “bitch” your female colleagues,etc…being allowed in the name of “freedom of speech”, it’s another story…And I’m quite serious, here, when comparing forbidding “Mein Kampf” and forbidding these other “speechs”.
Also, there’s quite a difference between something which might lead to bad acts and something which obviously has led to terrible acts in the past from which many people suffered and still suffer, and still lead currently, on a regular basis, to bad acts…
And the example you gave about printing a flyer advising to paint svastikas on synagogues isn’t a mere idea which might lead to bad acts. It’s an actual call to commit an unlawful (and really offensive) act.
Finally, printing and distributing a book stating that some race is inferior isn’t a mere opinion. It’s an insult (and in some cases a threat) at the face of hundreds of thousands of people. If you can’t insult someone publically without being sued, why could you insult millions without any consequences?