Eclecticism
"How can this panegyric on violent revolution, which Engels insistently brought to the attention of the German Social-Democrats between 1878 and 1894, i.e., right up to the time of his death, be combined with the theory of the “withering away” of the state to form a single theory?
Usually the two are combined by means of eclecticism, by an unprincipled or sophistic selection made arbitrarily (or to please the powers that be) of first one, then another argument, and in 99 cases out of 100, if not more, it is the idea of the “withering away” that is placed in the forefront. Dialectics are replaced by eclecticism — this is the most usual, the most wide-spread practice to be met with in present-day official Social-Democratic literature in relation to Marxism. This sort of substitution is, of course, nothing new; it was observed even in the history of classical Greek philosophy. In falsifying Marxism in opportunist fashion, the substitution of eclecticism for dialectics is the easiest way of deceiving the people. It gives an illusory satisfaction; it seems to take into account all sides of the process, all trends of development, all the conflicting influences, and so forth, whereas in reality it provides no integral and revolutionary conception of the process of social development at all."— Vladimir Lenin, The State and Revolution, Chapter 1. The State: A Product of the Irreconcilability of Class Antagonisms
Eclecticism is the simultaneous adoption of conflicting ideology, beliefs, political stances, and incompatible philosophical and theoretical conceptions. Eclecticism often manifests itself in the form of attempting to reconcile proletarian, Marxist ideology with bourgeois ideology, often resulting in the appropriation of revolutionary theory to capitalist interests in the form of revisionism and opportunism.