Ageed, self censorship is not a solution, but neither is the act of bombarding that culture with more offensive images. The whole idea that you can cast abusive comments into another culture and it will have the same effect as it would in your own culture is flawed.
We are trapped now, these stupid drawings have become some kind of flagship.
The whole point about 'extreme' forms of speech was the rarity, so when people like Wilde, Voltaire or Twain made those comments, it raised eyebrows, people paid attention, that was the point of using Free Speech. Voltaire wasn't trying to get the Church to get used to be being abused, he was trying to promote a dialogue for change, he wasn't just doing it for 'likes'.
If you make that the norm, where everyone is using abuse to prove their point, then it becomes totally pointless in and of itself, it just becomes abuse for the sake of abuse, and the point gets lost.