Even if that's true (which I'm not convinced it is; as I implied, "humanity" covers a lot of ground before it stops working in context), I'm uncomfortable with the implications of the quote. It seems to be treating value stability less as a (difficult) problem and more as an insurmountable obstacle, the sort where the only way to win is not to play. Then there's the "alas, Babylon" overtones.

Suppose I should expect as much from someone taking the name of a Kurt Vonnegut character, though.