(A implies B does not mean that B implies A)
The behavior of serial killers is not relevant to the question of whether or not there should be restrictions on the creation and dissemination of porn.
The vast majority of serial killers are male.
All males are serial killers.
The vast majority of serial killers are queer...both male and female.
All queers are serial killers.
guess one can say anything
I am on the side of these folks in the culture war but porn or nudity for adults is not the primary problem...not to me anyhow.
A lot of people like to drink alcohol
A certain percentage of them become alcoholics who drink while driving and cause accidents and death
Now I'll rephrase your conclusion slightly to see if your 'logic' holds up:
"The behavior of drunk drivers is not relevant to the question of whether or not there should be restrictions on the sale and use of alcohol."
It doesn't.
Hey - no logic allowed here.
;)