I'm a Polish man living in the US. In my subjective opinion and from what I've heard a lot of Polish immingrants (
but those who've been in the US for a short period of time, maybe up to 1 or 2 years) like American lifestyle, many opportunities they don't have a chance to get in Poland.
However, after a few years they notice that it's not really like on TV and many Americans are... dull and don't care about anything in the world other than their own ass. They wonder how it's possible to spend thousands of dollars a month for dog grooming or for buying things that are pretty much useless and end up in a basement after the first use. They wonder why most Americans are two-faced and cannot show their true feelings ("how are you?" - "I'm doing great, thanks!"). They wonder why Americans in the American catholic churches don't confess. They wonder why many Americans are so "proud" of themselves and forget where they came from (most of "Americans" are really old immigrats too).
Finally, they wonder why Americans can be so easily manipulated by propaganda and TV; in other words, why Americans think whatever's on TV is THE truth (see the point above about "dullness").
It's just my personal opinion though

.