With what seems like millions upon millions of copyright infringements, seems like more than enough for a serious firm to take on. With some major copyright owners on board I don't think it would be as David and Goliath as you're making it out to be. I wouldn't be surprised to see one of these cases come to pass when these labs actually become profitable. I haven't heard any pushback on copyright for AI labs in other countries so far so it seems to be a uniquely western complaint although I'm more than happy to be proved incorrect. I honestly have no clue how copyright is managed in Israel, India, or China.