I'm beginning to write off most images as AI. I actually think that's where this is all headed.
that's the easiest position imo. It's AI unless proven otherwise. No one has the time to place this much detailed on a random video when the purpose of the video is just entertainment. What this might lead to though is people losing (or not learning) the skills needed to separate real content from AI generated content
There are projects like https://contentcredentials.org/ . If we want, with some effort we could distinguish between real and ai generated. If.