Thank you. In your opinion, libertarianism, coexisting with a strong understanding and support for the common good, when such cooperation is required for the betterment of society as a whole, would be ideal. 

If you could indulge me, I’d like to provide an example of such a system and see if I am understanding you correctly.

Before European contact, the plains tribes of North America functioned as separate bands for most of the year. These were usually structured around familial ties. Individuals, or families, were free to leave a band whenever they wanted. They were not forced or bound to any particular band, and often times bands would not see eye to eye and families would move to another band. These bands were not hostile with each, as they were part of the same tribe/nation.

However, once a year the bands would put aside all of their differences and come together for a buffalo hunt. Their survival for the winter was dependent on their ability to work together for the common good. Each band and each family was given the same amount of food, to carry them through the winter. 

After the hunt, each band would go to their winter camp, and continue on with their independent lives, unhindered by the constraints of another band’s rules and expectations.

Is that what you had in mind? And it’s your belief that uncontained libertarianism is nullifying the idea of a “common good”. 

I can agree with this. Also, I would venture to say that by doing this they also bastardize the phrase “common good”, so that if one were to even bring up the idea in some circles they would be labeled a commie or socialist.l, and completely disregarded.