Unity vs Uniformity
Only Individuals can determine some equivalence between disparate goods or disparate acts. After all, individuals themselves are disparate humans and if value were not in the eye of the individual, how else could one individual exchange a book for the shirt or money of another individual? One values the book more than the shirt or money, and the other vice versa. This difference between them is what unites them in a brief moment of exchange. Thus, the economic exchange between individuals does not unite them despite their differences, but unites them due to their differences.
This unity (or community) requires both diversity and reciprocity.
One has to value x more than y. The other, vice versa. Thus, the diversity between them unifies them, so long as they reciprocate. This is all that trade and health relationships are based on. When trade occurs, people with different ends are united via a unifying means — voluntary trade and mutual respect.
Interests of Others
To be social is to interact with others’ interests, in which case a person can choose to consider other’s interests along with his own. If on the other hand, he consider other’s interests over his, then he conforms to others. The group interest becomes the individual interests, which is what uniformity is. If imposed, uniformity is the minimizing of difference between individuals. If members (no longer individuals) expect others to do the same and conform to the group, then that expectation is entitlement. Uniformity is anti-diversity and anti-reciprocity, contrary to what the socialist and communist claim.
Conformity (thought) → Entitlement (act) → Uniformity (outcome) 1
Uniformity is not unity.
What is Communism?
He can also impose his interests onto another, and that is dominance, though it produces hierarchy instead of unity.