Well, they did chose to join the European Union on their own accord, and take a lot of free money from them, so, while I would still refuse to take the migrants of course, it’s hard to see how they can complain too much.
Furthermore, they joined in 2004, not at the very beginning, they knew the crap they were signing up for.
*choose
They signed up to be a part of Europe, not the Turd-World cesspool Europe is quickly becoming.