Secure, robust operating system designs have been known since the 1970s. KeyKOS, EROS, CapROS. All commodity systems instead use classic access control lists, subject to fundamentally unsolvable access control vulnerabilities. seL4 finally implemented those lessons but it's far from a commodity operating system.
Can you point to an OS that can actually be used as a general-purpose OS? Or are you going to tell us that trying to run a web browser is actually what is fundamentally wrong with technology these days?
