"But, the thing is the Bible predicting certain events can make a solid argument for it's validity. Especially when most of the Bible was written before these things were discovered. You're stating that these claims cannot be used as evidence for the Bibles validity. Why?"
If you considered "fulfilled prophecy" to be an indicator of the truth of the Bible, what about prophecies that have gone unfulfilled? Do they, by extension, prove the Bible isn't true? If not, then why would "fulfilled prophecy" demonstrate truth? If yes, then you've a paradox.
Biblical prophecy appears no different than the "prophecies" of Nostradamus.
Biblical prophecies - RationalWiki
There is an even more fundamental issue that seems to be ignored when Christians propose "fulfilled prophecy" as evidence of the validity of the Bible, namely that people already knew of the prophecies prior to their fulfillment. Meaning that people intentionally go out to make the prophecies become fulfilled (or at least write stories indicating as much). Is it a fulfilled prophecy if someone takes it as an instruction to do something?
For instance, if I say to my wife that "the dishes will get done before the end of the week" and then she (under the assumption that I was suggesting she do the dishes) does them, did I just predict an event? No, I didn't.