nextcloud provides apps for both calendars and lists, if you’re comfortable getting into self hosted services. of course, there are a number of other self-hosted apps that provide similar functionalities as well, but nextcloud is probably a good place to start
Check out Lychee. It’s designed for (semi) public photo galleries more like Flickr
Asking why collective ownership of the means of production does not exist in our “globalized capitalist market,” while denying or ignoring the efforts of the Unied States and other rich capitalist nations to actively prevent any such nation from ever existing, is disingenuous at best. The United States in particular has a long history of involvement in regime changes / coups of left-wing governments, even those instituted by entirely democratic means.
In the US, students protesting the Vietnam war directly led to the end of free public education in California. Generally, the wealthy seem to fear an “overeducated” working class that is overly conscious of both world affairs and their own class position. Charging high tuition (and granting legacy admission, etc.) guarantee that the wealthy make up the majority of those who end up going though college.