He quite specifically says Bantown doesnt exist. Its a tactic, not an organisation.

If Amazon was to step this up.. why would they do it on a holiday weekend?

It makes perfect sense that Amazon are delisting books that get complaints, or some other attribute tagged on them.. This would have been going on for some time, and then someone has figured it out, and taken advantage.

If we knew how they were supposed to have been tagged, we could test it, by doing the same to some Christian book, and seeing if it gets removed.