That's interesting. Can you give examples of the independent corroborations of prophecy? I can see that could be quite compelling to an outsider.What "seems to you" wasn't my experience, for one. I was able to 1) ask God for persuasive evidence, since the burden of proof is His 2) find independent corroborations of prophecy and the Christ outside the Bible.
I approached my own conversion tentatively, knowing I would face difficult times from friends and family as a Jew. I sought evidence, and found it.