frustrations with the process to become legal immigrants, disillusionment with American materialism and a lack of promising employment or financial prospects.
There is a contradiction in that sentense somewhere....
A) If they are struggeling to become legal immigrants then they are there on a limited-time visa, so they had to leave anyway - it is hard for EVERYBODY to become a legal immigrant in the US, not only for Polish ppl.
B) Isn't wanting to have a good job and earning a very good living a form of materialism?
C) Ah, there it is, the contradiction: Promising employment, read: something much better than the odd waitress or busboy... On one hand they despise the American materialism on the other hand they want to be part of it. My best guess is that once they are in the circle of promising employment-opportunities, they will not despise American materialism anymore. Only those who have nothing despise materialism from the ones who can afford it. Funny how this disgust usually disappears very quickly once one also is able to afford to buy loads of stuff you do not really need.
Do they expect to get so much better jobs in Ireland, the UK, Holland or Sweden? With the odd exception, if they have no mentionable education, they will have to do the same sh*tty jobs they're doing in the US. Only difference is that they do not have to apply for a visa.