He's probably referring to this comment Bisqwit posted in the comments on that video: > I believe there is an incredible number of counterfeit doctrines and a

He's probably referring to this comment Bisqwit posted in the comments on that video: > I believe there is an incredible number of counterfeit doctrines and antichrists (Greek word that literally means counterfeit messiah), some more obvious and some more subtle. Islam being one of the most obvious ones. (It's a reference to Islam at least. Not sure how calling it a false doctrine is Islamophobic; seems like a pretty standard Christian take.)