Indeed, they think they can get people to think whatever they dictate, which is precisely why we must think for ourselves and look at what they're trying to manipulate from all angles, so that we get a clear picture (as clear as we can get anyway).
I don't know if it's puritanism per se that they're after, but I'm sure they're trying to destroy personal, inter-human relationships because they know love is the most powerful thing, the one thing that could pose a threat to their disgusting system, so...