Tobin wrote:Again, if Joseph Smith was merely a copyist, God could have just appeared and handed him the manuscript instead. Joseph Smith would be completely unnecessary if that is what happened.
If you can judge the reasonableness of how God acted or didn't act in this situation, then why can't we? We think it's reasonable to expect that if God commanded Joseph to translate something, then a translation (as it is normally understood) would have taken place. Clearly nothing of the sort happened. We think it would have been reasonable for God to let Joseph know that he wasn't translating anything at all, but simply receiving pure revelation (if the Book of Abraham is 'true').
You repeatedly revert to your argument that 'If God tells you Mormonism is true, then end of story' (or something to that effect). In doing so, you ignore the fundamental impracticality to such an approach. Millions of people have claimed God told them to do X or believe Y for all of recorded history. From baking cookies for their neighbor to flying airplanes into towers. Often these messages are at direct odds with one another, so unless God is just a jerk who is messing with all of us, he can't be the source of all these communications.
Besides, for the vast majority of people, there is no such thing as just chatting God up like you'd chat up your neighbor. Rather, it's a process of prayer and then reflective interpretation of feelings (or lack thereof) or subsequent events. It isn't "God said do this" or "God confirmed the truth of that." It's "I feel impressed to do this or believe that based on X Y Z experience." Because there is always a subjective human interpretation necessary to any "spiritual" experience, such experiences cannot be relied on to determine objective truth. It's too easy for one's personal beliefs, desires, or biases to be interpreted as some manifestation from God.
The approach you champion is, for all practical purposes, wholly unworkable.
I reserve the right to be wrong.