In cities like Warszawa or £ódz a lot of them were assimilated.
In small towns in eastern Poland there were places where they were in majority so they were living their life without knowledge about other nations in our country.
It is good realtionships between our nations changes so quick. I think still some Americans with both Polish and Jewish origin have some problems with it.
It is good that Israelis and Polish people don't have this problem. :-)
read about Polish year in Israel.
ynetnews.com/articles/0,7340,L-3530512,00.html
Poles and Jews are like old mariage, we argue we scream but at the end we love each other. :)