Does any American FReeper with Polish roots know the answer to the question asked in post #2?
From my experience, it depends on the cohort to which they belong. Post-war Polish immigrants and their children, mostly educated professionals fleeing communism, always tended to vote Republican. Pre-war immigrants and their descendants, largely working class and less aware of the evils of communism, tended to behave like other white Catholic ethnic groups: supporting democrats until recently, but now trending Republican.
I'm not Polish, but if I'm not mistaken the current government in Poland is conservative. As for the Polish Americans in Chicago, apparently they have no problems with repeatedly electing socialist mayors.