Earlier quoted context omitted.
I'm not sure I find your examples convincing. MS still firmly monopolizes desktop OS (over 85% market share there). Sure, that market has lost weight due to the rise of mobile, but last I checked we're all still doing our day jobs on desktop computers, and for most office workers (who aren't developers), that's synonymous with working on a Windows machine. For 20-30 years people have had effectively no freedom to cho…
Marketshare != Monopolizing Microsoft would have to be doing anticompetitive behavior to be monopolizing the desktop market. Things such as forcing OEMs to not allow linux support, or banning iTunes installation on Windows. Simply being popular isn't the same as a monopoly. Apple has, on the other hand, been monopolizing their iOS devices with the app store. It is the only way to install apps on iOS and Apple has pla…
No. I think the distinction here is important and worth being mindful of.
Whether or not a company is abusing their monopoly position has no bearing on whether or not they are a monopoly. You can't abuse a monopoly position if you aren't a monopoly to begin with, after all.
The distinction is important because in the US it's perfectly legal to be a monopoly. What's illegal is the abuse of your monopoly position.
I think by any fair standard, Microsoft can be considered to have a monopoly in the desktop market, whether or not they're leveraging that monopoly in illegal ways.