I respect your online personality and your scholarship in the sciences polymath. Your intelligence and candor are top drawer. But here in historical matters regarding Christianity, I have to disagree with you. Ethics of Christianity basically turned Judaic teachings upside down to the consternation of everyone. The standard mindset of the time was of the Old Testament variety and reflected the prejudices of Mosaic Laws.<quoted text>
But the ethics of Christianity are derived from the Greek and Roman ethics which were common at the time of the rise of Christianity. So, teaching Christian morality is largely also teaching stoic and neo-platonic morality.
The Jews of Jesus' day were very much offended by Greco-Roman ethics and practices as is attested in Josephus' two major works 'Jewish Wars', and 'Antiquity of the Jews.'
After the purported resurrection of Jesus, his disciples and followers started turning away from previous behaviors that were deeply ingrained by their Judaic traditions.