But then you have ancient OSs like UNIX that created the Internet and has had 30 years to adjust to the attendant problems, as opposed to Windows, which was designed to run in a trusted environment.
That's it I'm calling you out on this gross statement. Show me one server of Unix that's on the Internet today that was built 30 years ago that hasn't been upgraded and that is still serving a production purpose.
NT has evolved also. It's called Server 2003.