

According to .ml, anyone even slightly right of outright communism should be considered fascist. .ml is one of the more extreme hard left instances, so comments from the instance should be taken with that in mind. It is very heavily censored, so their users only ever see the “China and Russia did nothing wrong” type of rhetoric.
.world has issues, for sure. It’s the largest instance, and that comes with its own issues. But it’s definitely not fascist.
It can be, yes. One of the largest complaints with Docker is that you often end up running the same dependencies a dozen times, because each of your dozen containers uses them. But the trade-off is that you can run a dozen different versions of those dependencies, because each image shipped with the specific version they needed.
Of course, the big issue with running a dozen different versions of dependencies is that it makes security a nightmare. You’re not just tracking exploits for the most recent version of what you have installed. Many images end up shipping with out-of-date dependencies, which can absolutely be a security risk under certain circumstances. In most cases the risk is mitigated by the fact that the services are isolated and don’t really interact with the rest of the computer. But it’s at least something to keep in mind.