It’s absurd to assume that the opposite of this fallacy is true indefinitely though. There is a point where someone is simply not worth employing to do anything

It’s absurd to assume that the opposite of this fallacy is true indefinitely though. There is a point where someone is simply not worth employing to do anything at all. There is a finite number of valuable things that can be done with little to no skill/education/training. It would take a much greater level of investment in our domestic workforce to get around this than we currently provide. And at the moment it’s simply cheaper to effectively outsource this training to other countries and bring in skilled workers on visas instead of subsidizing training for our own citizens, so that’s what we’ve been doing for decades. There’s some truth to what you’re saying but IMO it would take a lot more to get there than simply having a higher minimum wage.