Some of us think Capitalism will not be the dominant organizing principle for resource management forever. Like many other -isms we expect it to have a beginning (growth) phase, a middle (status quo) phase, and an end (decline) phase. Some subset of those believe we are in the late stages of it already, thus discussion of "Late Capitalism". That doesn't necessarily mean total death—Monarchism and Totalitarianism still exist—it just means other organizing principles will be more dominant.

Others (you, perhaps?) think that Capitalism is the final form of our resource management ecology. To them, it just represents acceptance of fundamental laws of resources: property, policing, valuation, and money are inevitable constructs in any sane, functioning society where resources move semi-freely.

I respect people who believe the latter. But I am in the former category, and I (obviously) think that's a reasonable position as well.

What about capitalism-as-a-phase is so absurd to you that its suggestion immediately and completely discredits the speaker?