Complex sentence: Increasing court involvement is blamed, as well, for diminishing the role of public sentiment, and the authors see the 1960s civil rights movement as having morphed into a litigation struggle about rights and a "middle class" prerogative.
Split into simpler sentences: Increasing court involvement is blamed, as well, for diminishing the role of public sentiment. The authors suggest that the 1960s civil rights movement has morphed into a litigation struggle about rights and a "middle class" prerogative.