Again, while I agree with this sentiment, I think self-determination should still win the day. It is far too easy to be labeled as mentally ill and be committed to unwanted treatment. That has been tried in the past, and it never ends well. If someone is mentally ill and refuses treatment, that needs to be respected, up to the point that their beliefs begin to cause harm to others.

Of course, that conclusion begs further questions. Should unwelcome proselytizing be considered an attempt to do harm? Should it be permissible to indoctrinate children into religion? These are not easy questions to answer without grossly infringing some individuals' rights to free speech and religion.