You're framing of "sex icky" is a common reductionist approach to remove all humanity from the topic and try and make it purely logical. But that's always been a ridiculous way to argue.
The human experience has never been pure reason. A picture of a naked person will have wildly different effects than a picture of a dog, even though you could technically say they're both "just pixels on a screen". Reductionism doesn't get an argument anywhere; it's too commonly an intellectually lazy defense of the vulgar.
Of course you prefer reductionist, because that fits your interest of doing nothing, rather than seeking a solution to the very real destructive consequences of the genre in question. That's what I mean by intellectually lazy.
Porn is way easier to define than obscenity, so I don't see that being a problem.
The human experience has never been pure reason. A picture of a naked person will have wildly different effects than a picture of a dog, even though you could technically say they're both "just pixels on a screen". Reductionism doesn't get an argument anywhere; it's too commonly an intellectually lazy defense of the vulgar.