Buz, stop for a second. If our goal was just to discredit a prophecy, we'd point out that details about Jesus's supposed life could easily have been tweaked after the fact; after all, there aren't any Roman records (despite their meticulous record keeping) that even mention him, so there's no way to confirm it.
Did you stop and think for a second that maybe - just maybe - to a person reading it, that the prophecy is anything *but* clear that it's about Jesus?
If it were a clear prophecy, people would have used the method that I mentioned in the first paragraph.
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"Illuminant light,
illuminate me."