Linux gives you the ability to be your own system admin.
Most people don't want or need that and have been steadily handing over more and more admin duties of their systems to Microsoft, Apple and Google since smartphones have become widely adopted.
But Linux is totally usable to anyone who had enough admin skills to run Windows XP and not get totally wrecked by malware. It's just a matter of learning.
Military, most manufacturing is metric only thing that's not metric are street signs, building trades and anything else the redcaps interact with daily.
Something in the universe can be wrong, and you can also hold an opinion against that wrong that is also nowhere near the truth. There are lots of ways to be wrong.
Just because you are against something wrong, doesn't make you right. And being vehemently against something doesn't make you vehemently correct.
Windows is already dead.
Just a matter of time until people realize they're on a dead platform.