Tell that to Australia. They seem to be unable to grasp the concept and suffer from high employment and high wages.
Small population, highly industrialized country. Apples and oranges economically to the US. I could get into the detailed reasons, but that would be wayyy off topic from the purpose of this topic.
BTW Im from Perth but live in the US now.
In regards to Apple laying off people, its Retail. Its cut-throat and seasonal. You can't make a career out of selling computers even if it is for the richest company in the world. Wage and job stability is directly related to the individuals knowledge, Skill, and ability and how easy it is to find someone with those attributes. Doesn't take much to sell computers.