TD: Those are good points. Anytime an action is alleged to be a tort that might be actionable in some circumstances but not others, any relevant information will be considered, which is what I was saying earlier about baptism being one thing that could be relevant.
You are using the example of harrassment/ infliction of emotional distress. Being a member of the congregation might be a reasonable defense for a minister to show up at your door asking questions. But it's not the only defense. If you had shown up at the Baptist services the past two Sundays and spoken to the minister there, that might be a justification for the Baptist minister to call on you, even though not a member. On the other hand, even if you are a member and you tell the minister in no uncertain terms that you don't want him to do so, it could be a crime or a tort if he continues to call on you, member or not. So I was just pointing out that baptism, while relevant, is not a special talisman that gives elders additional secular legal rights.