I disagree. I'd like to see Windows reduce in market share, but still remain a strong competitor to macOS and Linux.

There's a lot of cross pollination of ideas that comes from OS diversity and a greater resilience to cybersecurity threats, as it is unlikely for any one vulnerability to affect 3 different operating systems at the same time.

People using Windows generally are not actively choosing between windows and macos, it’s assigned to them or they have software that only runs on windows.