Almost every one of his major points is an example of correlation being confused with causation. That's the major error made with statistics from middle-school on out: and it only takes a middle-schooler to detect it.

Example: porn and rape. Porn went up, rape went down. Fine. But during the same time span:

Consumption of beef went down... and rape went down.
Marriage went down.... and rape went down.
Use of typewriters went down... and rape went down.
Presence of fathers in the home went down ... and rape went down.
Bowling leagues went down... and rape went down.

Conversely...

female gun ownership went up... and rape went down.
Women enrolled in colleges//universities went up... and rape went down.
Average amt. of money spent by adults for Halloween went up... and rape went down.
45 states made it it easier to transfer cases from juvenile justice system to the criminal justice system... and rapes went down.
Dental cavities are declining ... and rapes went down.

SO???