This time period would coincide with Eastern European jews being allowed access to America for the first time in any real numbers. That race (ashkenazis) is a collection of mythmakers above all else, with their various fables (holocaust, mass murder at Masada, persecutions in spite of being forever innocent, climate change, feminism, racism, sexism, etc.). Their history of producing myths is older than their entry into America, and they will go on creating them, maybe even after they have no audience.