A prime example of a democratically elected government being overruled by a supranational organisation staffed by foreign civil servants.
Poland has less of an excuse to moan about their plight than the UK. The "Community" had morphed into a "Union" 11 years before Poland joined in 2004. National vetoes in a number of areas had been abolished courtesy of the Maastricht Treaty and it was clear that national sovereignty and independence were well on the way to joining them. The Poles (or at least their politicians) should have been under no misapprehension about what they were joining.
I think the Poles will have to make their minds up. Of course they enjoy their EU membership; they are considerable net beneficiaries and their young workers have the entire Union to choose where they will make their living (with over one million of them in the UK alone). They need to decide (if they are allowed to) whether those advantages are worth sacrificing the right to run their own affairs as they see fit. The UK was asked that very question and decided accordingly.