Their strategy will be to shut down the Bannon headquarters location immediately (it’s supposed to be in Brussels). Bannon will say fine, and move it into Poland....where the Poles square off when the EU says to kick them out, and they (the Poles) say own their land, and Bannon stays.
Then they will attempt to declare Bannon a non-guest in the EU, and mandate that he must leave Poland. There again, I’d expect Poland to square up against the EU.
All of this strategy stuff will play against the EU in public and bring coverage via social media.
In a normal EU representative election (next scheduled in June 2019)...they’d barely have half the people show up and vote. They intentionally run low-intensity campaigns. Well...with the Bannon affect, I’d suggest near 65-percent showing up and a right-wing win situation of 25-percent.
You are correct...the EU would need good arguments, and they haven’t accomplished that in thirty years.
The EU has dogma, not arguments.