Yeah, but the arguments against are difficult if impossible to sell:

Define porn.

Travel to another country.

Define porn.

In the US, periodicals don't post pictures of naked men/women (at least not the defined "naughty bits"). The ones that do are considered pornographic and require the purchaser to be a certain age.

In Europe, nude women in periodicals is not unusual.

In Muslim countries ... well, if you can figure all of the nuances of the most restrictive Muslim countries, I owe you a beer.