Coercive persuasion (aka mind control or brainwashing,) is secular conduct. Insofar as it is recognized as coercion and "undue influence," it is illegal conduct. Prohibition of this specific conduct will protect the State itself and the free exercise rights of all citizens without infringing on the free exercise rights of religious organizations.
Coercive persuasion is antithetical to the First Amendment. It achieves much of the harmful result of fraud, false imprisonment, coercion, undue influence, involuntary, servitude, intentional infliction of emotional distress, outrageous conduct, and other tortuous acts.
Common sense is not that common. Common sense is derived from an understanding of common reality. At this time, there is not much agreement on what common reality for all of humanity actually is except for the objective reality of the physical universe and its laws. This is one important reason why everyone should study the current facts about the universe and its laws as a whole and integrated system. Once we share a common reality about reality, we will then act in more common sense ways concerning the challenges of our individual and shared futures.