Sometimes it’s okay to just disagree. With a topic like AI, the effectiveness of arguments against it will vary heavily depending on one’s subjective opinion on things like intellectual property, what is and isn’t art, how we should deal with emerging technologies etc.
I’d love to get another singleplayer game as well, but I’ve accepted that Valve is just unpredictable. I’m sure they haven’t given up on Singleplayer and we’ll get another singleplayer game… at some point. Their previous game was the fantastic Half-life Alyx after all.