I don't think that you are being completely illogical. One thing about the Docker stack, though, is that it is supported by every major vendor, and you may well

I don't think that you are being completely illogical. One thing about the Docker stack, though, is that it is supported by every major vendor, and you may well be getting your server installations through a vendor (Red Hat, AWS etc.), so in that case you are insulated from problems. As other commenters have discussed, the vendors test and patch their Docker distributions themselves already, as well as contributing to development. We also already have a functional replacement with rkt. It can use Docker images, and Kubernetes can use rkt as a run-time in place of Docker, so Docker is not irreplaceable. I think that the most valuable bits of Docker today are the developer tooling - easy Windows and Mac installers, Docker Compose, the online documentation, and the Hub for grabbing ready-made images. None of which, AFAIK, makes much money for Docker Inc.