Thank you all for your good feedback.
WillJ said:
1. Yes, only individual human beings make decisions and actions. Groups of humans are biologically unable to act as an organic whole; instead they cooperate through communication, all the while still acting as individual human beings. All human action, including the history of the Soviet Union, can be interpreted as the actions of different individual human beings, nothing more or less. It should also be noted that cats and dogs (and all other living organisms) also act as individuals, not as groups. This premise applies to all life forms, not just humans.
Yes, but we are talking about human beings here. We can go into animal rights, but maybe in another thread.
I will use the third post to add definitions as we move along.
2. Yes, human beings are "connected with reality," just like a potato is connected with reality. They are able to "fulfill their purposes," just like a dog is able to fulfill its purposes. So yes, you have established that human beings are like potatoes and dogs.
By "connected" I mean the capacity to understand reality and to manipulate it, recognizing and following the laws of causality. An individual is capable of constructing an analogue, a model of the world in his mind. Model that includes not just his exterior world, but also his own person. So, intelligence, awareness of the self and the environment are the key ideas.
Of course, this model is far from perfect, but it is perfectible.
To WillJ, Whomp and Eli:
Even with patterns of irrationality (i.e. inconsistent risk taking or matters like religion), the dominant behavior must be rational so long the individual can recognize himself, his world and the causality that connects him to it.
As a matter of fact, it doesn't make much sense to even engage in conversation with someone we don't deem responsive to arguments. At least the people participating in this thread satisfy the criteria.
We also can't engage in conversation with "society" or abstract groups, only individual people.
I see the matters raised in the OP through the analogy of Physics. In Physics, everything eventually boils down to an interaction of separate sub-atomic particles. So that only individual particles can act and influence other particles. If you want to describe some system in the most pure, exact fashion, you must describe each and every particle in it and the interaction between all these particles and all the other particles in the universe.
[...]
I'm not saying that we can't use principles that apply to groups to describe society, just that we can't ascribe consciousness, action (and implicitly, responsibility) to groups, in and of themselves.
As for the labor union example, the representative must carry the recognition of all members to speak in all their names. If there is one dissenting member, the leader cannot speak in his name.