Trotsky was indeed a 'fighter against his time', though not in the Nietzschean sense. As a Marxist he was grately concerned with the 'Thus It Is' and was aware that the 'Thus It Must Be' is the child of the 'Thus It Is'. But he refused to bow to 'the blind power of the actual' and to surrender the 'Thus it Must Be' to the 'Thus It Is'.
He fought against his time not as the Quixote or the Nietszchean Superman does but as pioneers do-- not in the name of the past but in that of the future.
The Porphet Unarmed. Trotsky 1921-1929