Unsurprisingly, the people who design Apple's iPhones and work on Google's search engine are highly compensated and enjoy a very nice lifestyle in the US.
The problem is that there aren't enough of those jobs to go around, unlike the manufacturing boom of the 50s and 60s, where lots of American men (it was mostly men then) were able to afford a family of four, a house, a car (or two), nearby vacations, and a secure retirement (often a pension) from reasonably plentiful manufacturing jobs that required a minimum of training before the job started and could be done by nearly any able-bodied American male.
Many of those premises are now violated by either tech work requiring a +2 or more sigma of intelligence, often an elite college degree, and either/both of not enough of those jobs to go around and/or not enough people on the right side of the bell curve of ability to successfully hold those jobs.
The problem is that there aren't enough of those jobs to go around, unlike the manufacturing boom of the 50s and 60s, where lots of American men (it was mostly men then) were able to afford a family of four, a house, a car (or two), nearby vacations, and a secure retirement (often a pension) from reasonably plentiful manufacturing jobs that required a minimum of training before the job started and could be done by nearly any able-bodied American male.
Many of those premises are now violated by either tech work requiring a +2 or more sigma of intelligence, often an elite college degree, and either/both of not enough of those jobs to go around and/or not enough people on the right side of the bell curve of ability to successfully hold those jobs.