Penn Jillette, one of our allies and heroes, gives us an atheist guide to the 2012 election. The relevant part for intactivism is right around the 10 minute mark.
Jillette talks about how a mass falling away from organized religious belief is amplified by the internet. He says it has become really hard for religious communities to shield their members from opposing and differing ideas. It isn’t that religion is disappearing, but that people who find themselves believing something different have the space to come out of the closet and live radically different than they would have, unexposed to other views.
The lesson for intactivists is that we will never go back to a time of total isolation. When a teen or young adult upset at being circumcised or suffering from a poor circumcision outcome goes online, he will find a community of supporters and a wealth of information. Odds are he won’t do it to his own son. In contrast, how many times have we heard from men who came of age pre-internet, upset at being circumcised but who circumcised their own sons anyway?
Partially NSFW due to language and Jillette never addresses circumcision specifically (although his views are well known on the topic).