Companies are already deploying AI everywhere they possibly can as quickly as they possibly can. They aren't waiting for anything. AI just isn't up to the task of replacing most workers just yet. It's still unclear if it ever will be, but they're shoving AI into everything they can to see how it holds up, to see what it breaks, and to give it more data to work with so that it can hopefully be improved.
Some companies looking to get rid of even more workers might search for new technologies that they hadn't considered before but which could enable them fire more people, or they might accelerate existing plans to replace workers with technology to get rid of them even sooner.
AI is different though because companies are fully aware of it and they are already moving as fast as they can. They have been salivating at the thought of using AI to fire their workers for years now and they're already making every effort to replace workers anywhere it seems feasible to do so. They are in such a hurry that it sometimes results in embarrassing failures like this one: https://www.motorbiscuit.com/airline-ai-chatbots-refund/
Like you say, the world is messy, which means there is no rule saying that companies must leave massive piles of cash sitting on the table until the economy gets bad enough for them to reach out and take it. Shareholders won't accept that. Any company that sleeps on firing their workers when AI can do the job will get absolutely crushed by their competitors who don't sit on their hands.
Obama too had to clean up a mortgage crisis from his predecessor's careless deregulation. Not an excuse for his own crimes, like say drone striking US citizens. But Trump is just openly corrupt, inept, praising autocrats and aspiring to be one.
People give Obama a pass when they shouldn't. This stuff didn't start with Trump. The problem goes back much further.
No need for false equivalence.
In that environment ZIRP was the only solution. Ben Bernanke (a Bush appointee, re-appointed by Obama) devoted his academic career to how the Fed could have prevented the Great Recession. He was right.
When this happens, there will be a big recession, and that is exactly the moment companies will start deploying AI in earnest to save money. This will create a downward spiral.
Yes, the Trump administration is incompetent. But, if you insist on blaming an administration, I would propose Obama and Biden as more reasonable culprits. It was Obama who presided over the massive Fed intervention into markets that enabled unbridled government spending increases. It was Biden who presided over the most problematic parts of the Covid response. Trump is just an idiot. Obama and Biden are actually bad guys.