The above points are interesting ... and deserve some serious consideration. My own view is that I have trouble with the Bible and with many things said and done by God ... or attributed to him.
At the same time, I find Jesus Christ a compelling person, who's words and actions comdemn many of the types of religions then and today. Christ is an enlightening person ... whereas, the modern day Watchtower Governing Body, of Catholic College of Cardinals, or Mormon 12 Apostles to be something far beyond anything Christ ever talked about.
Faith is personal. Relationship with God, as one understands and perceives She/He/It, is personal ... and that is about as far as I can go with any type of religion.
Faith is not founded in science, or rules of evidence, or in rock solid truth ... though I would love that, if we had all truth and evidence, and all the necessarily proof ... faith would be reduced to one thing: Personal experience with God ... like a child has faith in their parents love and care.
I do not see Ray as an unwitting slave, anymore than Paul was unwitting slave ... it is a choice, a personal determination to believe or not to believe ... but the Christian faith assigns many attributes to Christians, such as children, grown adults, adopted, priests, etc., including being slaves of God and Christ ... the difference is not being slaves to men.
If God does not exist, and the entire world of many faiths are to be pitied as the Apostle Paul stated ... and that is true ...
I am still struggling with faith, with God, and what I need to do as a person ... so I cannot judge one way or another ... but I can't say anything about Ray Franz's faith, because in the end, it is between him and God.