AI isn't ready to replace programmers, engineers or IT admins yet. But let's be honest if some project manager or CTO somewhere hasn't already done it they're at least planning it.

Then eventually to save themselves or out of sheer ignorance they'll blame the chaos that results on the few remaining people who know what they're doing because they won't be able to admit or understand the fact that the bold decision they took to "embrace" AI and increase the company's bottom line which everyone else in their management bubble believes in has completely mangled whatever system their company builds or uses. More useful people will get fired and more actual work will get shifted to AI. But because that'll still make the number go up the management types will look even better and the spread of AI will carry on. Eventually all systems will become an unwieldy mess nobody can even hope to repair.

This is just IT, I'm pretty sure most other industries will eventually suffer the same fate. Global supply chains will collapse and we'll all get sent back to the dark ages.

TL,DR: The real problem with AI isn't that it'll become too powerful and choose to kill us, but that corporate morons will overestimate how powerful it already is and that will cause our eventual downfall.