There are a lot of assumptions in your post:
- $25k annual wage (I used that number up thread and said it was just a guess). Do we know the actual number?
- Do we know that 10k higher wage jobs at other companies were displaced? No we don't.
- How many unionized drivers have been replaced? Don't know, but we do know that UPS has been hiring up to 100,000 workers for the holidays.
- Having been both a short order cook and stocker in the preReagan years, I can say that neither provided more than subsistence wages.
- Also we don't know what will happen this spring and to what extent shopping will revert to local brick and mortar businesses.
And yes change is coming and those who want to earn a good living had best be prepared. There isn't a way to stop the technology that will increasingly replace workers of every sort, but mostly starting at the bottom. The pandemic has only accelerated that change.
I don't have exact figures for most of your questions, I was just using numbers others had posted for the sake of argument. Knowing their exact figure either way won't make a major difference to the argument.
But I do have an answer for this -
Having been both a short order cook and stocker in the preReagan years, I can say that neither provided more than subsistence wages.
Federal minimum wage in 1965 was $1.25/hr, or $10.33 when adjusted for inflation. It rose to $1.60/hr or $13.22/hr by 1968. For comparison, federal minimum wage is now $7.25/hr and has been stuck there for about a decade. The last time there was an effort to raise it, it was only to $10.10/hr (less than in 1965) and the effort failed.
A couple other huge differences we shouldn't overlook -
Life was cheaper in all respects back then. In the preReagan years, you didn't have to have a cell phone and wireless plan, or an internet connection just to function in modern society. Many of the creature comforts were also cheaper, if they existed (depending on how far pre- we are talking, cable TV may not have even been a thing). And while we can argue that people don't need cable or PC games to function, we can't really say that about the internet or cell phones, student loans or hospital bills.
The other thing is that the proportion of truly minimum wage jobs as a portion of the overall society was much lower back then compared to now. Moreover, if you worked as a short order cook or a stocker back then, there was a reasonable expectation that you'd be able to work your way up to a decent living. Back then, you could have started as a short order cook and got consistent, decent raises and then maybe be promoted to a management position that was a good living.
Today, you're lucky to get a dime/hr raise per year and managers in most locations make ~$25k/yr for atrocious hours. And I have to reiterate that $13.33 in 1968 went a
lot further than it does today, much less $7.25. It may not have been the high life but it wasn't destitution either.
It has gotten so bad with how companies were abusing salaried employees that Obama forced through a rule change to make those making less than ~$40k on salary eligible for overtime and even that was quickly overturned by Trump, relegating many ambitious people to effectively less-than-minimum wage when compared to the amount of mandatory uncompensated overtime they work.
I can't speak about your time in those industries but when I worked them, there were an awful lot of middle aged workers making right at or just above minimum wage with literal decades of experience. I have a hard time believing that was the case back then.