This will be interesting and precisely what I mean by "biblical conundrum" because I have no doubt that your opponents will pull some scripture that supports thier case. Again, it is hard to believe that God would present such a stunningly complex scenario that is not easily understood by all. Instead we need to argue passages and their translations and meanings within the proper context; not quite an ideal situation for all men, even if they are looking for a god.
The bible has stunningly "whiffed" on the human condition. Certainly, not all on Earth are like we are in ARP, or else we would not see as much voter apathy as we do.