The video's subject matter discusses the Tragedy of the Commons, an economic theory of a situation within a shared-resource system where individual users acting independently according to their own self-interest behave contrary to the common good of all users by depleting or spoiling that resource through their collective action.
This self-interested behaviour dooms us to live a life ruled by our own needs and wants, and not what is best for the collective whole. Excessive individual thinking creates a dog-eat dog world, and excessive communal thinking denies individual freedom.
What do you think is the middle ground between these two extremes? What would be good both for the population and the individual? Or do you think one or both extremes are what's good for everyone?
Some form of population control might be a good start.
The trouble with individualism is that it assumes that each individual in a society cares about that society and will act at a level of equal responsibility. At one time, people might have asked "Why do we need a king or a lord to tell us what is right and wrong? We're thinking individuals, just as smart as they are, and we can figure it out for ourselves."
But the assumption in the video is that humans, when given individual freedom and left to their own devices, are somehow incapable of governing and restraining themselves.
In the fishing example, the village mayor or king could simply proclaim "No one catches more than 1 fish per day. Anyone who does so will be tarred and feathered." But the same assumption carries the implication that only certain "special" individuals can make those proclamations, since the average "peasant" is incapable of understanding or restraining their own behavior.
That's how human societies have mostly been run for thousands of years, based on the notion that only certain enlightened individuals have the talent and intelligence to rule, while the rest of society is a bunch of ignorant peasants who have to be controlled and treated like cattle. The old "carrot and stick."
But over time, it turned out that some of those enlightened individuals really were enlightened and started to challenge the old order. The ideals of equality, liberty, individual freedom were formulated and implemented to the point where they're considered absolutely essential today. "Give me liberty or give me death!"
Among other things, I see the concept of "equality" as meaning that no one is actually "born to rule" or has any "divine right." Individualism is about being judged by one's own individual merit and ability, not because of what family one is born into (or race, ethnic group, or even gender). In our own society and culture, this has meant cutthroat competition and a dog-eat-dog world, as you mention. Every individual wants to win, although there is also some reward for being on a winning team (even you're not one of the star players). Teamwork is also considered important
But the video ended on a somewhat hopeful note in that not all is lost yet. Humans can learn to behave more responsibly and with consideration for the future. In addition to population control, we might consider putting our resources and energies towards more efficient and environmentally-friendly transportation systems. We have a love of automobiles, and the automobile is often regarded as a symbol of individual freedom, since people can get in their cars and drive wherever they want. But when everyone wants to do that, using the same limited amount of road space (and parking places), then it becomes quite a mess. I guess that's another kind of "tragedy of the commons," since everyone wants to use the roads which get congested, so we need more roads, more parking garages.
A lot of it is also caused by people moving to outlying areas where they commute to the city in the only way available to them, which causes more traffic jams. The same people moving out to the country to "get away from it all" bring it "all" with them. It's a vicious cycle that will eventually reach an unpleasant demise.
Some communities have outlawed plastic grocery bags. I guess they figure we might as well do something, since we're all probably screwed anyway.