How Child Porn is not Free Speech?

Hitler has killed 6,000,000 Jews, yet Mein Kampf is free speech.

Pedos have killed no one, yet child porn is censured.

Where is logic?

"Free speech" refers to the right to speak against those in power - i.e. those with the power to silence speech - and was hard-won by the people. Associating it with pedos, racists and other social debris just makes it more likely people will willingly give up their right to it.