Google has 95% of search market, but none of the other examples have 95% of anything. What are Amazon, Apple, Microsoft’s monopolies? They all have substantial competitors across their various verticals.
Amazon: Walmart (goods), Netflix (media)
Microsoft: Apple (OS), Google, Amazon (enterprise compute)
Apple: Microsoft (O, services), Samsung (mobile), Google (mobile, services), Netflix (media)
Amazon: Walmart (goods), Netflix (media)
Microsoft: Apple (OS), Google, Amazon (enterprise compute)
Apple: Microsoft (O, services), Samsung (mobile), Google (mobile, services), Netflix (media)