The sane understand that human beings are incapable of sustaining conspiracies on a grand scale, because some of our most defining qualities as a species are inattention to detail, a tendency to panic, and an inability to keep our mouths shut.
The church as a whole has strayed quite far from biblical evangelism; that is, sharing the Gospel in the way that Jesus did, the way the Apostle Paul did, and the rest of the disciples and prophets in Scripture.