You say "LOT of people" will provide art, even for free. Have you ever tried to create an unknown project with free online collaboration? Why don't you go ahead and give it a try...
Also do you know that running AI generation on my GPU takes less energy than running some AAA game? Are you bullying random gamers too, or just solo developers? If you were concerned about electricity consumption in the games industry, you'd be protesting AAA games, cause it costs more energy to run the games and they have hundreds of millions of players. I bet the energy consumption of a month of GTA5 is more than the total AI-image generation of solo developers over the last 10 years.
Please put these things in perspective and ask yourself what you are doing.
