I'm really surprised about your statements on Linux having no security model. Not only is this untrue (there are lots), these remarks also run the risk of sending people back to data hoarding OSs like Windows and MacOS.
Saying that you even prefer Android over Linux because Google protects you there is also surprising, since Google is a notorious data hoarder, even if they decreasingly allow others to do the same on their platform.
But if you are worried about Linux security, have you taken a look at OpenBSD? They run a very tight system without the VM-overhead of Cubes.