What is your response to someone who watches pornography under the pretext that seeing nakedness in a picture is not considered seeing nakedness [in reality]?

Scholars have differed on the ruling regarding looking at an image of the 'awrah (private parts): Is it the same as looking at it in reality? However, they did not differ on its prohibition if it is done with lust or leads to temptation (fitna). Therefore, watching pornographic films is a false claim, and its prohibition should not be open for discussion, due to the various psychological, social, and Shar'i corruptions it entails.