Your post is talking about only the code itself, the quality, the speed. Other people are already debating you on that, but I suggest that you also look into what's surrounding AI that's making people very averse to it.

Many see AI as the biggest representative of the world and the internet getting worse. It accelerates the decline that was already there, and when people see their favorite websites become littered with garbage, themselves not being able to find a job or the supposedly enlightened tech elite becoming 10x more insane than they already were, the obvious thing to look to is AI. And what about all the companies that are trying to hop onto the hype bandwagon and are enforcing AI usage or laying off half their staff and demanding that the remaining half 'just use AI' to work twice as hard? Also not very good for the image.

The kind of people who only care about code quality and ignore the above issues, in my experience, are people with no horse in the job market race. Old people, rich people, non-techy people who don't have to do this for a living. They're having the time of their lives churning our small personal projects and not caring about anything else. Everyone else is suffering too much from the other causes to take them seriously.