While a large chunk of game developers are in America, it’s still a small fraction compared to worldwide.
A video game strike would probably slow down a few triple AAA projects. But rather than 10,000 games being released in a year, it might be 9,000 games.
I’m not anti-union or strikes. I just believe that if say Ubisoft America strikes, nothing will really change perception-wise as indie devs will fill in the blank, and Ubisoft shifts to Canada/Europe branches.