Wolf:
“Based on that reasoning, should we also not learn on Adolf Hitler’s* birthday (19 Nissan)?”
How do you compare the two? Yoshke was a learned man. He was a Talmid of one of the the Amoroim (I think Ben Prachia- not sure)if he hears divrei Torah, he will get a zechus. We don’t want that.
Hitler was a simple goy. What would he benefit from hearing people learn?