Your obsession blinds you to basic concepts.
“(So we’re to believe the Lord was locked into choosing a man with a Mormon ID & the oldest birthdate among certain elderly men with Mormon IDs because a Web site or two says so????)”
The Lord chooses his Prophets and they are in the right place at the right time for him and us. Exactly how he arranges for this to be done, is beyond us and I am not privy to it. This is really not that hard to grasp. (If one isn’t obsessed with looking for any perceived fault that is.)
Your other new focus about paperwork is beyond silly. Just because you don’t know or understand how we will know of all the people who have ever lived doesn’t mean we won’t. The Lord will provide. Everyone will have a fair chance.
Yet another much ado about nothing by the anti-Mormon propaganda gang. Convince yourselves there is an issue where there is not.
TADA!