The normal state of affairs is the weakness or virtual non-existence of A Left. What demands explanation is the occasional existence of periods in which the left is strong! That is not normal, and explaining that abnormality ought to be a central concern of left theory.
Given this fact (and it is a simple empirical fact of history), there is a second phenomenon that needs explantion. Why do so many left theorists devote themselves to a false and misleading effort to explain left weakness rather than attend to the crucial task of explaining occasional left strength.
Carrol