As part of her alternative-theology-slash-alternative-h
The Jews are still around, but they're not what you'd usually think of as Jewish. Specifically, Jesus (called Yeshua ben Josef) has been accepted universally by the Yeshuites, who are thus all messianic Jews. They even use the word "Moschiach" when referring to him, which is either the same word the modern, real-life messianic Jews use or close enough that my lack of Hebrew can't distinguish :-)
What this means is that in her world, when a major politic upheaval took place in central Europe and a new nation and religion were formed, Catholicism didn't happen and the Jews all became Yeshuites (messianic).
So, I ask my readers: if you're Jewish, do you find that idea realistic? Offensive? Both or neither? If you're not Jewish, feel free to speculate. We're mostly Californians here. If we can't get huffy and offended on somebody else's behalf, who can?