As somebody who's worked in games as a programmer, it's hard to have too much sympathy for voice actors, when all the (almost entirely non-unionised) artists, animators, programmers, QA, and more have put up with so much overwork ('crunch periods') and undercompensation, along with constant threat of sudden lay-offs (usually studio closures) since, well, before games had voice acting. A strike could be an additional threat to the projects and therefore jobs of those non-unionised workers.

(Yes, maybe the rest of the industry should have unionised a long time ago, but it hasn't happened)

Voice actors are important these days, but they aren't the 'movie stars' of gaming. The real stars of game development are usually unknown individuals developing internal tools and asset workflows, endlessly tweaking numbers to try and make a game 'feel' just right, doing CPU/GPU profiling and optimization, or doing tedious-but-essential QA work, tracking down those hard-to-replicate bugs.

And not everyone is in agreement on the whole AI issue. The hype/fear bubble is likely to deflate, and IMHO, AI-based tools are more likely to empower creators than replace them.