Not likely. VW supportd the union organizing drive.
https://slate.com/news-and-politics/2023/10/biden-administration-union-strikes-nlrb-win.html
Do you like to fight battles you know you will lose?
Choose your battle.
In the US, right now, you have an administration which is extremely favorable to unions and the rules are such that trying to block or fight them is difficult.
“VW supportd the union organizing drive.”
VW was just trying to contain the damage.
They have no qualms about closing US plants and have done so before.
As I recall reading some time ago, the company's German plants were subject to union disruption at the time over labor strife at the U.S. plant.
I predict this Chattanooga plant will close in the not-too-distant future. The UAW vote will have nothing to do with it; it just seems like a useless plant that has one of the smallest production/sales totals of any major auto manufacturer in the U.S.