/ Why are Polish people so ruthless?
I know exactly what AnglikMan is talking about.
Some Poles in America act the same way. Once they get what they want from you, then you are nothing. You help them get jobs, get their paperwork in order so they can be here legally, get them a place to stay, a car etc. and once they get everything they can out of you, you are not needed anymore and you become a turd.
Of course not all Poles act that way, but it's usually the ones who are less intelligent and greedy for money to show off their friends and relatives in Poland what they have. And once they get situated in Chicago amongst other Poles, they don't need to learn English anymore.
But I have noticed the same pattern over and over with Poles coming to the US.