Community and communal can mean many things. Communal in the natural sense of how most early nomadic society behaved can be viewed as similar to fraternal. People were heavily dependent on each other to survive and displayed the responsibility to each other needed to make this mutual dependence work.
This contrasts with paternal societies, an inevitable consequence of civilized large masses. For example, representative government is paternal, electing people to make decisions for you. The participatory government that occurs in early nomadic tribes and even some present day small bands is communal, or fraternal, with everyone sharing the decision making responsibility.
Responsibility is a virtue, both right and good for humanity. Responsibility is right for humanity by getting what a community needs done. Responsibility is good for humanity by cementing a person’s belonging to their community.
Consider the alternatives of paternal societies. Members of those societies fall into one of four types. They are burdened if they fall into the alleged 20% of such societies that does most of the work. Otherwise they are exploited, alienated or indulged depending on the intents and practices of the “burdened.” All of these paternal types erode virtue, what is right and good about us under natural conditions.