There may be an inversion as white collar jobs sink, but not because drywalling is going to get better. All of my family work in trades and it's a lot harder and less stable than we office workers like fantasize, as much as I love the ending of Office Space too. It's cyclical and sometimes there's not enough work. Cost of materials is volatile and can eat into your income. And it's skilled. Programmers tend to think everything else is easy and if you can teach yourself React then electrical should be a no-brainer. That's to say nothing of start-up costs. It was incredible that we coders could bootstrap six-figure careers with a $4000 MacBook Pro. Trades workers need a truck, you need power tools, if you're not loosey-goosey then you need insurance. All of that costs a lot.
That's for anyone joining the trade. Out-of-work middle-aged programmers with soft keyboard hands and little or no experience hanging dry wall? Why pay them any more than the 24 year old guy. AI may automate us out of our desk jobs, but the downward pressure of us transitioning to trade jobs, even at the bottom level, will only make those jobs less lucrative.