Who among the following is not associated with Cultural Imperialism?

The correct option is Stanley Fish.

To understand why, we can examine the theoretical associations of each of the scholars listed in the options:
1. Raymond Williams: He was a pioneering Welsh academic, novelist, and critic. He was an influential figure within the New Left and in wider culture, and is widely regarded as one of the founding figures of Cultural Materialism and cultural studies, which critically analyze how cultural forms are influenced by and participate in structures of power and hegemony (including imperialism).
2. Jonathan Dollimore and Alan Sinfield: They are prominent literary theorists who co-edited the highly influential text Political Shakespeare: Essays in Cultural Materialism (1985). Their work in Cultural Materialism focuses on how literature and culture are produced within, and interact with, political and historical power dynamics.
3. Stanley Fish: He is a major American literary theorist and legal scholar who is best known for his contributions to reader-response theory. His famous concept of "interpretive communities" suggests that the meaning of a text is created by the readers who share a particular set of reading strategies. His work is centered on literary interpretation rather than theories of Cultural Materialism or Cultural Imperialism.

Therefore, Stanley Fish is the theorist who is not associated with these socio-political cultural theories.