These remarks don't really address the philosophical questions I raised. Even if we had a record of a murdered Jew saying that he refused to convert to Christianity because he believes in a different theology, how would we know that there's no self-deception in that report? How would we know the Jew wasn't leaving out deeper reasons for the lack of conversion, namely his pride in Jewish culture and history or perhaps just his personal stubborness?

What's operative here isn't any ignorance on my part; rather, it's that my philosophical reasoning is going over your head. I'm talking about the nature of religious belief. It's ludicrous to think that beliefs in transcendent, supernatural matters are just like mundane beliefs. Indeed, Jews understand that, which is why they prohibit idolatry and don't indulge in much theological speculation (in contrast to Christians).