Poland is terrified about Brexit and hordes of immigrants. Not those savages from the Middle East but their own citizens coming back to Poland. It means now it will have to develop a domestic jobs policy as Poles return to Poland only to face mass unemployment. Well, what do you expect when the official policy was “Go to the UK and find work because there’s none here and we have no idea what to do about it.”
This is what scares the government and not just PiS, but all governments before them. Besides, if the EU crumbles, who will give them money?