You made my day @AstonJ!
I’m envy how in other countries people see it. Of course everything is possible, but how you imagine collecting a huge army (thousands) of people all of full trust? That’s without even saying about how would you collect millions of PLN. It’s something which is just not possible for most of people in Poland.
Simply look how huge is our migration in years and you would see how much we 
our politicians. Depends on reports outside of Poland live about 20 million people. That’s huge amount, isn’t it? Now look how much people are in Poland - less than 40 million, so 1/3 leave or was forced to leave. Of course some part of them is because of wars etc., but if things would be as simple as you say and Poland would be a good country then why even part of that people don’t come back?
We really have much more higher problems in country than you can imagine. Honestly? My half-joke half-serious idea about buying island and create an country there could have even more chance for success. That’s how things works in Poland at least about politic.