Actually, no, people certainly do care. They want to actually be able to reliably have the damned thing actually do the job they need it for, not randomly blue screen and delete all their data. MS is a very unreliable platform and that pisses people off. They therefore try ANY alternative that they KNOW ABOUT in order to avoid what they HATE.
Conclusion, people don't care. If a relative is able to send and receive e-mails with you, who cares what OS generated it? If you can do your banking online, who cares what OS drives the browser? Microsoft is giving people what they want. An easy way to use a computer. I dare to say that I will never touch a computer if my dad successfully completes a git bisect session.
This is not the dark ages. The typical user who is saddled with wondoze for 5+ years definitely KNOWS how to reinstall their OS, or knows someone who will do so for them at fairly regular intervals. All it takes is a simple suggestion; next time you need a reinstall, try XX linux distro. Just pop in the disk, boot and follow the directions. When its done, you can click on stuff with your mouse and never even touch a terminal.
And as for the viruses and hackers that steal people's money, the user get's the blame. That is just brilliant. People don't know how it works, but they still want it. So *any* negative outcome is blamed on them. You did not install proper anti virus! You did not install a good firewall! You don't update often enough! You click on links without thinking! No one ever mentioned that once we got our first PC + dial up...
And then comes the geek: You should do it competely differently! Install another OS! Learn to use a terminal! (To do what? The end-user might think)
I would turn nuts...