[agucova]

Agreeing with circuit10's comments, I don't think many proponents of AI Safety are doing so through Pascal wagers. People differ a lot in their assessment of how likely certain risks are, but people I know working on AI Safety tend to place numbers between 1% to 30% of a global catastrophe associated with AI in the next 20 years [1]. I don't think this is negligible, nor analogous to your supermassive teapot example.

[1]: You might disagree with this assessment, but my point is that this is not where most people are arguing from.