There have been measured claims backed up by arguments and evidence. My frustration is that people aren't addressing the specific arguments that have been made:

1. https://www.aifutures.org/ outlines a number of specific scenarios, and importantly details their methodology for each.

2. Independent researchers in the Hugging Face incident outlined how previously predicted misalignment scenarios actually played out, and outlined how slightly more advanced AI, or slightly more misaligned, or with more access to critical infrastructure, could cause immense harm: https://www.planned-obsolescence.org/p/the-hugging-face-atta...

3. Technical leaders at OpenAI (specifically their chief scientist) outlined the problems they gave with controlling models now: https://openai.com/index/an-alien-mind/

None of the specific arguments in these or many other detailed explanations of how an AI takeover could occur were even acknowledged.