wjtk; you alone don't decide what Poland is going to do. At most you can protest or vote (if you are a Polish citizen) for the representative that matches your ideals most closely. EU is not a dictatorship, absolutely. But money talks no?
Let us have a look at actual numbers. Here is official data on Poland's State budget for 2015 from the Ministry of Finance, in English;
EU funds direct cash contribution to Polish state budget, which the Polish government is free to spend however they wish is 1.5 Billion Zloty.
EU contribution to projects that are co financed from Polish state budget is 49.2 Billion Zloty.
EU Grants + contribution to all other projects = 303.7 Billion Zloty.
Total EU contribution: 354.4 Billion Zloty estimated for 2015.
These figures may vary slightly depending on exchange rate variations, rate of project execution and release of payments etc, so look at this as a ballpark figure.
Now let's put this EU contribution into perspective in relationship to where Poland stands financially today:
Polish State Revenue for 2015, estimated: 297.2 Billion Zloty.
Polish State Expense for 2015, estimated: 343.2 Billion Zloty.
Poland's GDP 2013: USD 517.5 Billion =~ 1,480 Billion Zloty per exchange rates of 31/12/2013.
This means that EU's contribution to Poland is bigger than the entire revenue or expense budget of the Polish state, and equal to about 24% of Poland's entire GDP.
This is only one financial aspect. The other one is all the other investments originating from other EU countries and coming to Poland, not as a part of the EU funds, but facilitated and made possible by Poland's EU membership.
Here are 3 examples, and this data is from 2013 and the source is Polish Info & Investment Agency (paiz.gov.pl/poland_in_figures/foreign_direct_investment)
Germany: EUR 27.5 Billion
Holland: EUR 25.9 Billion
France: EUR 19.1 Billion
Total (for only 3 EU countries) = EUR 72.5 Billion = ~ 293.6 Billion Zloty. Again, this figure is about the same as the entire Polish State revenue budget and equal to about 20% of Poland's GDP for the same year (2013).
Edited to add: I don't know how many jobs money from EU creates in Poland exactly, but how about you guess how many jobs can be created with 350 Billion Zloty per year?
So, you say you are ready to give up not less than 45% of Poland's GDP in terms of EU funds and EU investments to avoid hosting a few refugees? Did you know that the EU will pay Poland per each refugee taken EUR 6,000 per year= PLN 24,000 per year = PLN 2,000 per month, which is a salary that some Polish FAMILIES live on? This literally means the Polish state's cost for accepting refugees is zero or close to zero. All that is needed is for Polish people to volunteer some of their time to help potential refugees assimilate into Polish society and learn the Polish way of life.