I don't see it happening for one very simple reason. Many of todays young adults need porn. They don't want serious involvement, or commitment, so until they find a steady fuck buddy, they need to jerk off. They need their porn. I also want to point out that this is coming from Mormon land, and while other conservatives might get on the band wagon, I can't see it being banned nation wide. Maybe states like Utah, which still is unacceptable, but I think it would come down to local level bullshit, at worst. Porn is, or was, a 7 to 13 billion dollar a year industry, I don't see it going away.
Having said that, I will say it's wrong for this guy to feel he has the right to play morality judge for everyone, and the only changes I would accept, as valid, if they haven't done it yet, is make it illegal for adult advertisements, or pop ups appearing anywhere other then adult sites, so little kids can't get hit with an ad for hot anal sluts, while looking for information to write a report on something unrelated.