Mmm no. Christianity is not about child marriages and consumation, its not about killing anyone that doesn't convert, its not about doing whatever evil you want in the name of Allah. Christianity sucks because most Christians don't act Christian.
If its a cult, and its authoritarian its a leftis cult. Because big government is on the left of the spectrum with totalitarian government at the end of the spectrum on the left. Authoritarian government is slightly to the right of totalitarian but not by much.