The entire global technology infrastructure begins and ends with the United States. [...] Intel, AMD, Google, Apple, Microsoft, Cisco, Facebook.... All US companies.
That looks like a reasonable list of most of the biggest US companies in computing today. You might have added a few more, notably Amazon, and perhaps the big PC manufacturers like Dell.
However, for their size and resources, many of these companies have done remarkably little to advance technology infrastructure in the last few years. Almost all of them became big on the back of a small number of very successful products or services, but many of their more recent attempts to diversify have failed horribly. Today they mostly survive because they're so huge that they can afford to buy almost any other business that is actually innovative and potentially disruptive to their market dominance, and that's also how a lot of "their" innovation happens. Most of them are going to be in trouble if one or two geee that lay golden eggs die, and in several cases there are warning signs already.
Meanwhile, you kind of forgot all the Asian giants and quite a few European companies that actually make most of those smartphones you mentioned, not to mention many of the household appliances we buy, huge amounts of telecomms infrastructure, huge amounts of transportation tech...