For centuries, almost from the times of its creation and to the final participation of Poland, the Polish state was utterly friendly to the Jews. ....
and I am 100% sure that in Holland Jews had it better
Maybe in the 1930's, but not in the 1630's.
Besides merchants, many physicians were among the Spanish Jews in Amsterdam. These included Samuel Abravanel, David Nieto, Elijah Montalto, and the Bueno family. Joseph Bueno was consulted in the illness of Prince Maurice in April, 1623. Jews were admitted as students to the university, where they studied medicine as the only branch of science that was of practical use to them. They were not allowed to practice law, because lawyers were required to take a Christian oath, thereby excluding them. Jews were also excluded from the trade guilds, as in a 1632 resolution passed by the city of Amsterdam (the Dutch cities were largely autonomous). However, they were allowed to practice certain trades: printing, bookselling, and selling meat, poultry, groceries, and medicines. In 1655 a Sephardic Jew was exceptionally permitted to establish a sugar refinery using chemical methods....
Many
German Jews were also attracted later to the tolerant and independent Dutch provinces, generally after the mid-17th century.
in Polish - Belarusian (Great Litvin)
confederation , the Jews were mostly magnats employees (tax collectors from peasants , all kind of middle hands , etc. ) which made them automatically the hate objects for
90 % of local population (peasants)
Magnat – Wikipedia