Fine be American but don't claim to be Polish
Hm, why do you think that one can't claim his heritage? There's nothing wrong about knowing where your ancestors came from.
Most my friends here are Polish, when we have parties other nationalities come there are Americans of different background, Arabs, Latinos, Russians, Ukrainians everyone gets along.
good for you, one great American family :-)
But there are also some homophobic locals who look down on foreigners.
just like anywhere else in the world too, right?