Do you even realize that every object build by the EU found has to be financed by Poland's money at least to 50% of the total cost? Meaning if Poland cut by half all those investment she could easily built other half with her own founds - no need for the EU.
Are you sure about that?
And without EU funding, the institutions wouldn't be interested in the risk - what Polish money are you talking about? The Polish treasury couldn't afford a ****** in a brewery, and it weren't for the EU, people would still be dying here from silly little diseases, and the same old crap would rule, as well as outdated and amoral practices - because Poland wouldn't know any better.
Only those of a low IQ would want Poland to leave the EU, and really the rest of us shouldn't be lowering ourselves to enter into debate on this non-question.
USA will give us weapon, money and political support
I'm with Sikorsky on this one. The US will give you **** all. They despise you. It will be akin to a sexually transmitted disease. They even make you beg like dogs for a holiday visa :)
Europe together. Though you are the ingrates.