That might be true to some extent, but I think there's a problem with that line of thought.
People are a "moving target". What may be a bottom-tier worker now, could very well be a valuable employee in 5-10 years. Many folks have built their career by starting at a low level and then getting promoted and upskilled over time through hard work and commitment. Starting at a low position and advancing is becoming, sadly, a rare thing.
The "first wave" and subsequent waves of outsourcing have to a large extent eliminated paths of career advancement for many workers. At first it was unskilled laborers and now it has been creeping up to virtually all technical job descriptions. The wet-dream of MBA's who promote this stuff is corporations consisting of a few C-level people and their board, and then a layer of fab-less product and operations people who just manage supply-chain and services stuff with external vendors. It's an ugly picture but that's what the global supply chain people want.