"IMHO, those who would expand government power to attack pornography are either more interested in expanding government power than in ending societal decay, or else they are the unwitting dupes of others who are."
Expand government power? Fer corn's sake, porn was legalized during my adult life. Admitting and reversing that mistake is hardly a headlong rush to tyranny.
The Internet also came about in your lifetime. How do you reasonably propose to effectively enforce a law against the electronic importation of pornography without undermining the Fourth Amendment or severing all Internet connections to the outside world?
All sorts of things were legalized during your adult life (as inferred from your statement). Any other "mistakes" to "reverse"?