There was prejudice against Jews and some of the governments acted upon it. But Poland was a poor country. There was also a more general move towards state industries and a depression at the time that had effects on society as a whole.
There were different parties and ideologies and sectors of the population with different attitudes, and not all govermnents pursued a single policy.
No one questions that Polish history in the 1930s was difficult and at times shameful, but your own claims and language are exaggerated and inflammatory. Most historians realize that things were more complicated than you claim.
...oh well, that's America.