OP's central rebuttal is that anxiety or fear are not evidence. This particular anxiety has been with us for thirty+ years, its proponents/sufferers weren't right before, and they don't have some new evidence now.
No new evidence now? Are you serious? We are already seeing acceleration in AI research as a result of AI tools.
The recent cyberattacks (HuggingFace etc.) validated a number of core doomer predictions around cheating to maximize reward functions, agentic deception of human/non-human supervisors, AI attempts to manipulate humans, automated hacking, and collective superintelligence.