Fine. Does your knowledge of Polish history allow you to say something about the level of anti-Polish sentiment among the Jews at that time? It arose or decreased today? Perhaps it is shocking perspective for you, however if you want to stay objective...
Poland was once called “Paradise for Jews” so many had moved there from areas which persecuted them. There was no reason for them to be anti-Polish, they were sometimes their only friends.
Jewish history in Poland was up and down. There were periods within which the ruler protected them. There were other periods which were not so benevolent.
Then there is the problem of defining the Polish territories which fluctuated a great deal over the centuries. This also means defining just who the Poles are because the populations related to the ambiguous nature of the borders.
Poland was the least anti-Semitic country in Europe until the Russians took it over.