That's such a weird position to take, "not your own work". Do you think someone just asks the AI "make me a game", and it just spits out unlimited images in a cohesive plot? Without a good prompt describing each individual shot, how exactly each character must look, where they are, what they are wearing, what they are doing, the AI can't do anything. That's just as much "your own work" as if someone decided to hire a third-party artist and described them what they want. Sure, some AI art is more generic and less carefully crafted, but crappy art is crappy art, it isn't the AI that's causing lazy people to be lazy; good AI art exists, and requires A LOT of work.
And if you don't think that someone asking an AI to create art makes it "not your own work", do you also hold the same position for people who download character models, environments, props, and every single other visual asset in their games and just shove them into Daz and hit render? It's less "their work" here than on AI art, is this something you have been protesting as well, saying that games aren't "their work" unless they manually model each character and prop in the entire game?
Some people here have such arbitrary gripes that I that I can only hope they come from ignorance of how this works.