So how do you explain the FUNDAMENTAL differences in interpretation...
Same way I explain all FUNDAMENTAL differences in interpretation. Different people, different experiences, bias, hidden agendas, insanity, low IQ.
you believe the claim that "the bible is the 100% factually true word of a perfect god" is functionally indistinguishable from FALSE
(THEN) we are in agreement regarding this particular claim.
Nope.
You are committing a logical fallacy. The "bible" refers to 66 separate books with different authors written over a period of 6,000+ years. Each part of the bible does not necessarily carry all the qualities of the whole.
For example, a car is %100 a vehicle, but a tire isn't. The bible is true, but everything in it isn't. Satan speaks in the bible. But what he says is untrue. Thus, not everything in the bible is true. Some things are just records of innocuous conversations. Not "true" or "false" in the factual sense.
Must everything with you always be about the truth of the bible? I'm showing your claim insisting that any work be taken as wholly literal or wholly figurative is illogical, and all you're consumed with is to discredit the bible.
Sometimes we want to discuss things other than is the bible/god true? If you can't discuss other things than that, get out of the way and let people with broader interests talk.