no it says the the largest employment groups in the country are low skill and if you count up the service-sector jobs or the low-skill jobs in the NPR link it's close to 50%. this is of course ignoring the low-skill jobs in the education and healthcare sectors and the "professional and business" services sectors.
and again with the median income thing.
there's a reason why in 20 or 30 years there will 90 million totally obsolete jobs the world over. automation is just annihilating the job market because so much of it is unskilled.