It looks like it's the union saying that, rather than the company.
I can't imagine the company itself insisting on the corrosive influence of the UAW before it will deign to open a plant in a Right-to Work state.
“I can imagine fairly well that another VW factory in the United States, provided that one more should still be set up there, does not necessarily have to be assigned to the south again,” said Bernd Osterloh, head of VW’s works council.
“If co-determination isn’t guaranteed in the first place, we as workers will hardly be able to vote in favor” of potentially building another plant in the U.S. south, Osterloh, who is also on VW’s supervisory board, said.
....
Osterloh’s comments were published on Wednesday in German newspaper Sueddeutsche Zeitung. A spokesman at the Wolfsburg-based works council confirmed the remarks.
“The conservatives stirred up massive, anti-union sentiments,” Osterloh said. “It’s possible that the conclusion will be drawn that this interference amounted to unfair labor praxis.”
I had heard about this comment from VW in Germany so I wrote the letter.