As Shakespeare, another child of that era, would remind us:
Shylock: I am a Jew. Hath not a Jew eyes? hath not a Jew hands, organs, dimensions, senses, affections, passions? fed with the same food, hurt with the same weapons, subject to the same diseases, healed by the same means, warmed and cooled by the same winter and summer, as a Christian is? If you prick us, do we not bleed? if you tickle us, do we not laugh? if you poison us, do we not die?
You wrote:
“I’ve been extensively throughout Europe, I’ve seen the depictions of Jews in paintings on the back of altars and on stained glass, and I would say that Luther is no different than anyone else in medieval Europe in their treatment of Jews.”
The difference is our founder was a Jew. Protestantism was founded by Luther.
Good find. And William Shakespeare was a Catholic suffering persecution in jolly old England, so he would have a pretty good perspective on it.