[DouglasKC]

The author assumes that because he opposes porn/pot/drugs on the same grounds (religious) that others must either support all or oppose all with a unified rationale. This is a logical fallacy because the issues can be divided and supported or opposed on different grounds.

I don't oppose them merely on religious grounds. I oppose them because they're harmful to society.

[yazoo]

“I oppose them because they’re harmful to society.”

Many things are harmful to society and among the most harmful are rules that try and protect people from themselves. If I want to sit in my living room and smoke pot and watch porn how in the world does that affect you?