> Non-example 2: There are worries about AI-facilitated biological weapons. I haven’t seen any evidence that’s happening.

> Non-example 3: I’m not interested in wild theories about AI driven labor market disruptions leading to widespread starvation. There’s no evidence for that.

There are things that, by the time you see direct observable evidence for them, it's probably too late.

Also your example 3 is a straw-man. There's no need for "widespread starvation" to be concerned about "AI driven labor market disruptions."