I think it's a combination of a) reflexive dislike of any hyped-up tech, mainly due to the crypto era, and b) subconscious ego protection ("this can't be legit, otherwise everything I've built my identity around will be thrown into question").

The best models already produce better code than a significant fraction of human programmers, while also being orders of magnitude faster and cheaper. And the trendlines are stark. Sure, maybe AI can't replace you today. Maybe it will hit that "wall" people are always forecasting, just before it gets good enough to threaten your job. But that's a rather uncomfortable proposition to bet a career on.