Earlier quoted context omitted.
How is Google a monopoly? Serious question.
Google controls the vast majority of the web search market. More than 90%. What exactly a monopoly constitutes is something that people can disagree about, but "has 90% market share" is not by any means a crazy definition of a monopoly.
Facebook has 90%+ market share of social media. Do they have a monopoly?
GitHub has a 90%+ market share of open source code hosting. Do they have a monopoly?