Essay – Why did the New Left revolutionaries in the 1970s and 1980s believe that community media was prefiguring the emerging post-capitalist society?

Here is the question.

Why did the New Left revolutionaries in the 1970s and 1980s believe that community

media was prefiguring the emerging post-capitalist society?

This is for my politics module politics and media freedom and it is the essay question from
the discussion week of alternative media.