DavidFilmer says, “you’re welcome.” For the benefit of others who have not read the previous thread, angel1 refers to The Anguish of the Jews by the preeminent expert in the field of Catholic/Jewish relations, Fr. Edward Flannery (may he rest in peace).
while I understand that Christians aren’t exempt from sin, this anti-Semitism seems to be a deeper thing.
Deeper than sin? I didn’t know anything was deeper than sin.
it’s almost like it became part of the church’s theology, due to certain views of early church fathers that took root.
There’s no doubt that some Early Fathers were very influential in creating an anti-Jewish culture. But the Early Fathers are not the Magesterium of the Church. They don’t “teach” in the manner that the Church teaches. And they’re not always right. They were not unanimous in many areas, and all but one opposed the idea that baptism by heretics was valid (before it became a Doctrine of the Church). The Fathers are instructive (when they’re correct) but are not authoritative.
how did the church not err in moral teaching while promoting these views of the jews
You’ll have to cite the manner in which this teaching was promulgated. Did it come from a Pope? An Ecumenical Council? A Catechism? This is how the Church teaches. If you don’t have something like that then you don’t have a teaching of the Church. Catholics acting badly is not the same as Church teaching.
obviously, I understand, there were other factors, but if this theology of the jews deserving God’s divine punishment didn’t exist, I think it would have diminished a lot of problems.
Anti-sematism in general can be traced back to the Gospel of Matthew:
When Pilate saw that he was getting nowhere, but that instead an uproar was starting, he took water and washed his hands in front of the crowd. “I am innocent of this man’s blood,” he said. “It is your responsibility!”
All the people answered, “His blood is on us and on our children!” [Matt 27:24-25]
Christians historically have blamed the Jews for the execution of Jesus (and the Jews blamed themselves and their descendants, so that’s not a completely unreasonable position). Jews were viewed as agents of Satan (look at the way Shylock is portrayed in the Merchant of Venice - a viscous, bloodthirsty, merciless Jew who would use the legal system to murder a Christian).