Again, it’s up to juries of Americans to decide if the standards of their own communities have been violated. Americans should judge right and wrong by our own standards. To do away with all standards and norms just to be “tolerant” and “multicultural” and “diverse” is to embrace moral relativism.
As a hypothetical example, I don't want some small township of isolated Muslims near DC to be able to ban depictions of women not wearing Burqas on the Internet.
I suspect you'll have little tolerance for slippery slope arguments, so instead I'll argue that the majority of American's either don't care much one way or another about pornography, or secretly enjoy it in private regardless of what they say about it in public. I'll be happy to have you prove me wrong by pointing me to an anonymous poll that denies the point.