Automation and efficient machinery have made most labor significantly easier and require significantly fewer people. The rise of corporate desk jobs and call centers pretty well represents this. A huge portion of society is already doing meaningless work that only serves capitalist interests.

This means a couple things. First off, far fewer working hours are required to maintain a community. People don't have to work 40 hour weeks just to get by. Secondly, people can rotate what jobs they're performing based on how they feel like investing their efforts. I'm an anarchist, not a communist, so my beliefs surrounding division of labor are different from, for example, a marxist-leninist.

Western society is far too indulgent with many things that cost massive amounts of resources and provide very little in the way of human benefit. Public transportation should be the norm everywhere for instance, because cars and roads are wildly resource intensive for really no reason. Every human being does not need to possess a personal vehicle. It does not actually serve our interests. It just pushes the cost of transportation onto the workers, instead of the ruling class funding actual comprehensive functional public transportation. This is just one example, but the way we approach food is also extremely flawed. Instead of primarily relying on our host ecosystems and local food production to feed ourselves we ship food all around the world at another massive resource cost. We are also over-reliant on resource intensive livestock, when much less resources intensive options exist.

Put all things together, and it becomes firstly apparent that we are wasting the majority of our resources on stuff that has no actual real world benefit to us. So we could stop wasting those resources, and thusly not need to invest as many labor hours into production. So far fewer people need to work than currently do. And labor should be invested locally, into things that directly benefit you your family and your community. Instead of the present case where the majority of your labor hours are invested into things that have little to no tangible benefit for yourself or your community. So its much harder to see how your work is actually helpful.

Part of the propaganda you're fed by capitalism is that cooperation can never work because everyone is selfish and uncooperative and "exploitation is just human nature". Those things are not true. Exploitation is not human nature. Humans are naturally social and community oriented. We are naturally codependent and have adaptations for functioning within a community. Capitalism, and more broadly consolidation of power into a ruling class, has upset humans natural tendency to cooperate. Capitalism puts mortal pressure on our ability to expend labor hours for capitalists. You cannot help anyone else because it risks your own personal life, any time you spend money you're spending your own survivability. It's what means you can live at all. So people do not want to help anyone else. We are taught through propaganda that being homeless is a personal failing. That being poor is a personal failing. This is specifically to prevent human cooperation from expanding into a genuine desire to improve life for all workers.

So people don't feel like they can cooperate, which leads to the general perception of human nature as being selfish. The idea that people will work to better the lives of everyone in their community is a completely normal idea.