Really, this is past being ridiculous, you're just flinging mud at the wall now.
False baptismal certificates and identity papers were forged by the Vatican for some Italian Jews. That's not a conversion. No-one was required to convert. Others were simply physically concealed in convents, the Vatican, Castel Gandolfo, the Swiss Guards, etc.
The most famous conversion, that of Rabbi Zolli, took place after the war was over.
. . . and, by the way, what did YOUR church do in Italy or in Germany to resist the Nazis?
OMG!
Is that what he means?