[richrichardsson]

Search for "people don't change their views based on facts" with your engine of choice for a plethora of articles that confirm the query.

I don't remember the source but I read recently that peer pressure is far more likely to change someones mind about a given subject.

[sharken]

I think the fact approach works well for rational and logical thinking persons.

As for the rest, yes other approaches must be employed instead.

[TimTheTinker]

As long as the approach is respectful and not manipulative... anything less will backfire.