It feels to me like there’s an inconsistency between calling Christianity “Judaism for export”, and saying that it quotes the Old Testament for the purposes of bigotry. Or maybe it just feels antisemitic, even if not deliberately so. I mean it’s not like there isn’t bigotry in the New Testament, or radical acceptance in the Old.
But also I don’t think you can argue that Christianity is a mere extension of Judaism and at the same time argue that it shouldn’t utilize Jewish text.
There’s bigotry in the New Testament too, and great wisdom in the Old. Neither is without merit or flaw. The idea that the NT is insufficient for finding bad ideas that one must trawl back into the OT for such things is fundamentally what I was critiquing.
I think it’s fair to say that some Jewish text is incorporated into Christianity, but the interpretation is generally not the same. Christians may see themselves as practicing a logical extension of the worship of the God of Abraham, but from a Jewish perspective they’re doing their own thing.
Objectively I think that holds. A rabbi could explain it better I’m sure, but Christianity is quasi-polytheistic, often iconoclastic, and importantly rejects pretty much all Jewish law, supplanting it with the particular interpretations of one rabbi who is also the son of God but is also God himself.