AI may have continually extra degrees of freedom, but civilization only has so many modes of catastrophic failure. I don't grant the comparison but even nuclear technology has been massively useful and its main mode of catastrophic failure was brought under control via multi-national treatise. And I see no evidence that AI (outside of the marketing hype) is as dangerous as Nuclear technology.
[1]: https://knightcolumbia.org/content/ai-as-normal-technology