The beauty is if the other Eastern Europeans like the Hungarians and Slovaks and Czechs back them - which they will, there isn’t a damn thing the EU can do about it.
The Eastern Europeans are smart. They’ve learned the bitter lessons about how socialism does not work and they had to fight hard to regain their national sovereignty after decades of foreign oppression. They’re not about to give that up. They will however be happy to soak up EU structural funds to pay for their infrastructure, agriculture subsidies for their farmers and free movement to allow their workers to go to Western Europe to make much higher salaries and send the money back home. This is making climbing out of the hole decades of socialism put them in much easier and much less painful.
Also,consider this....twenty plus years ago Ireland was the naughty child of the EU. But over time,thanks largely to huge sums from Brussels,Ireland is now just another tawdry little European cesspool.