Hmm, don't know where you got your statistics from, but these say otherwise. It's a chart of total global labor force, employment, and unemployment from 1948 to present
At first, population size in the U.S. have grown significantly also, so your chart is not representative (you must look at the percentage, not absolute numbers). Secondly, have you noticed labor force participation leveled off last years even in absolute numbers (population continued to grow nevertheless)?Programmers:obsolete
Programmer will be the last profession automated! 