I don't agree with this. Sure, things like VFX have existed to augment the experience of movies and other types of content over the years, but these were large-scale commercial projects that only a few could afford.
We're now reaching the point where anyone can create video content that humans aren't able to discern is real or not, and that is unprecedented. Video is an extremely powerful medium that has driven entire movements. For example, BLM wouldn't have happened without the world watching a video of a cop publicly murdering George Floyd.
There's something about seeing video evidence of heinous things happening that drives people to act more than simply reading op-eds or listening to interviews, largely because it's more viscerally stimulating.
We can't know until generative AI has proliferated and fully integrated into society to know whether or not it's changing how we think or behave.