Why everyone against AI in the games and coding?

What’s the issue with using AI in game development? If I can make a better game with it, why does it matter? I get the concern about ‘AI slop,’ but I’m talking about actually putting effort into a good game just using AI for about half the coding and for voice acting, since I can’t afford actors. Still, whenever I mention it, people immediately say ‘it’s AI, I don’t like it.’ What’s the real problem?