The earliest fragments of the bible are dated to several generations after the facts.
Irrelevant. You are aware, are you not, that the only way to preserve written information thousands of years ago was to very carefully copy an original because originals decayed and got lost or destroyed? Even today, as digital storage technology changes, information must be copied to new media to maintain its availability. If we did not do that, we would have data on tapes that no one could read because the drives are no longer manufactured. You could then accurately claim that "the oldest copies we have of the information are only a few years old", when the original information was recorded long ago.
Anyways Paul's writing of people who said they saw the resurrection is actually pure hearsay on its own.
You're basically conceding the point there. Had he written hundreds of years after the fact as you have repeatedly stated, he would hardly have said eyewitnesses were still alive.
Now, the evidence for alien abductions is totally anecdotal, hearsay, after the fact, and from a handful of people over the last several decades. No one can show a UFO and no one can call for one to appear and take them for a ride. Yet you maintain your faith in them while totally rejecting accounts from millions of people over thousands of years who have reported encounters with God. Not sure why it's such an obsession with you when you clearly understand what it means to take something on faith.