They already have the 3d most powerful economy in the EU, if I'm not mistaken. Imagine what they could do if they could get rid of the unions that are causing their unemployment.
At least their unions are patriotic. Unlike most (not all) of the unions in this country.
How do define "most powerful?" Germany, France, UK, Italy, Spain, the Netherlands, Belgium, Sweden, and Austria have larger economies.
In GDP per capita, Poland is 63rd in the world and well down the list of EU countries.