Effectiveness should be measured by results. So you would have to look at deconversion stories.
The problem of evil witnessed on a personal and intense level has done it for some. Historical scholarship on the origins of their religion has done it for others. For others again, materialist science leaving ever-shrinking gaps for God to be in.
Effectiveness should be measured by results. So you would have to look at deconversion stories.
The problem of evil witnessed on a personal and intense level has done it for some. Historical scholarship on the origins of their religion has done it for others. For others again, materialist science leaving ever-shrinking gaps for God to be in.