That is a very silly argument considering that Docker is built on primitives that Linux exposes. All Docker does is make them accessible via a friendly UI, and adds some nice abstractions on top such as images.
It's also silly because there is no single "Linux model". There are many different ways of running applications on Linux, depending on the environment, security requirements, user preference, and so on. The user is free to simply compile software on their own if they wish. This versatility is a strength, not a weakness.
Your argument seems to be against package managers as a whole, so I'm not sure why you're attacking Linux. There are many ecosystems where dependencies are not vendored and a package manager is useful, viceversa, or even both.
There are very few objectively bad design decisions in computing. They're mostly tradeoffs. Choosing a package manager vs vendoring is one such scenario. So we can argue endlessly about it, or we can save ourselves some time and agree that both approaches have their merits and detriments.
