Possibly because the cost for entry to macOS is higher than with iOS. Most people are able to run a Windows computer at very little cost, and will never have any interaction with a Mac. Meanwhile, iPhones and Android phones are (broadly) on a par in terms of cost.

I will say though, speaking as someone who’s used Macs since 2007, as much as I’m no fan of how Windows works, I won’t give anyone shit for doing so. But I used to get quite a bit of vitriol for my choice of computer.