Linux has been becoming a "serious threat" for 20+ years now. I'll wait.
Don't get me wrong I like Linux a lot. But if you step back and look objectively, it has a lot of issues trying to grow outside the hobby/enthusiast community for the desktop.
I'm surprised a country with free health care doesn't provide free vaccines.
If US insurance companies cover vaccines, you can bet your ass they've done the math and it saves them money over just paying for the people that get sick...
While you are 100% correct. Good luck changing people's understanding at this point.