The irreversible global catastrophe is imperialist militaries massacring people with little risk to themselves. 
The irreversible global catastrophe is assembly line robots at the Toyota plant becoming sentient and going on a freaking epic terminator style mass shooting and enslave everyone except me 
You’re worrying about the wrong AI. They’re testing LLMs in the military. The AI has been eager to deploy nuclear solutions in testing.
You need to worry about people doing dumb shit with fake AI, not generalized AI.
Yeah, they did that back in the 70s, you can learn about it in a little game called MGS: Peace Walker
Or that one Matthew Broderick documentary
I would argue this is just people who already wanted excuses to do terrible things offloading the responsibility to the thing they invented to do terrible things. Absolution of blame for lack of a better word.
As @Yeat said in another comment, if the people (you know, real sentient beings that make decisions) wanted, they could just unplug it. ---
Yeah but we won’t just unplug it because we believe life is like the movies where it happens at the last second thanks to a gritty group of outcasts.
Never mind that the movies “based on a true story” dramatize things to hell and back and focus on the actions of one or two people when most major changes are made by movements that are organized and have laid years of groundwork to get to a tipping point.
In the second book of the Rifters trilogy by Peter Watts, spineless corpo types leave the major strategic decision-making on how to handle the emergence of a primordial proto-organism dubbed "Behemoth" to a bunch of lab-grown neural network computers running AIs. The computers eventually skew things in the direction of allowing Behemoth to take over because it created more predictable outcomes than the chaos of human activity that kept forcing the AIs to reallocate resources to deal with new variables, leading to global mass death via the proliferation of a thing not complex enough to be called a virus stripping all the phosphorous out of people's cells to perpetuate itself.
Watts seems like an absolute maniac, but I do enjoy his books.
All of the best writers are absolute maniacs, but if your favorite authors aren't on the Do Not Fly list what are you even doing with your life