"invent and make things" may make it sound differently, but this article is purely about manufacture of physical goods. Facebook, Twitter, and Google are considered service providers, not manufacturers, in this situation. Apple is the perfect example of what Dyson is talking about though: those cool layered pixel displays are manufactured primarily in Southeast Asia by LG, Sharp, and Samsung. Dyson would be lamenting that they aren't produced in the USA, he isn't saying they aren't being invented in the USA.