First, there are the "Jews" one encounters in the Bible. Second, there are the "Jews" who seem for all the world like Roman Catholic priests, bishops, cardinals and popes (into such things as baptism, communion, confession).
Early Protestant reformers, to keep in the good graces of their political sponsors who were not as religiously sophisticated as they were, usually spoke of "Jews" when they meant members of the "Roman Catholic" hierarchy.
They weren't fooling anybody, but it did keep their necks out of the Prinz' noose.
There's much less of this sort of thing at the conclusion of the Thirty-Years War with the signing of the Treaty of Westphalia; October 24, 1648. In pertinent part this treaty states: "That there shall be on the one side and the other a perpetual Oblivion, Amnesty, or Pardon of all that has been committed since the beginning of these Troubles......."
Subsequently Louis XIV was free, within his primary domaine of France, to initiate the most brutal persecution ever seen of the Protestant Huguenots ~ without interference of any other party. America became, at this time, a place of refuge and sanctuary for Europeans dispossessed at Munster.
Things ran downhill from there and culminated in WWII.
The Jews and Their Lies, Martin Luther
It pains me to think of it. The man who wrote such stirring words of grace and hope also penned such poison. He also wrote, I more fear what is within me than what comes from without. It's a good philosopy, as sadly, his is not the only sin committed in the name of Christ. It seems we often sin out of frustration with the Lord's plan and timing. Only disaster comes from trying to force God's Hand.