Constantine at least informally converts to Christianity. He also folds paganism into a morphed Christianity. This new pagan–infused Christianity speedily spreads across the empire.
Meaning, therefore, that Rome converts to the religion whose de facto progenitor it had originally condemned to death and executed by crucifixion 300 years earlier.
Constantine I enacts restrictive legislation against the Jews
– conversion of Jews to Christianity is banned
– non–Christian congregations for religious purposes are curtailed
The morphing of the Roman Empire to Christendom, under the aegis of the Church Fathers, will radically negatively impact the Jews scattered throughout the Roman Empire—for centuries to come.
The Christians controlling the empire will promulgate an intensely negative portrayal of the Jews, and will promulgate the “Passion” (saga)—constructed selectively from most intense vignettes of the Canon Gospels—revolving around the last several days of Jesus.
As the Passion Saga is easily transmitted both to the small educated elite of Christendom—as well as to its millions of masses—a toxic view of the Jew is disseminated ongoing through Europe, for seventeen centuries through the Nazi era in mid–1900s.
This demonization of the Jews will set them up to be the scapegoat of choice for any demagogue making an appearance on the European stage for seventeen centuries. As the Jews declined to disappear as a distinct entity, they remained time and again, as a prime–and–easily–identified target.