what are you on about? The fact Qubes has to exist proves Linux is insecure. QubesOS is not a Linux distro. It just happens to ship dom0 as a Fedora VM. But it

what are you on about? The fact Qubes has to exist proves Linux is insecure. QubesOS is not a Linux distro. It just happens to ship dom0 as a Fedora VM. But it doesn't just support Linux, it also supports Windows and BSDs. None of Qubes security guarantees come from the Linux kernel.