Final answer:
The movement signaling 'the death of isms' is postmodernism, which questions the validity of universal truths and ideologies, encouraging a multiplicity of perspectives. It is associated with diverse and fragmented contemporary social movements, as explained by New Social Movement Theory.
Step-by-step explanation:
The movement that could be interpreted to signal "the death of isms" in our contemporary age is broadly associated with postmodernism. Postmodernism represents a departure from traditional grand narratives and ideologies, suggesting a skepticism of universal truths and encouraging a multiplicity of perspectives.
This cultural and philosophical movement questions absolute standpoints and promotes relativism in areas like ethics, aesthetics, and knowledge, which consequentially can be seen as signaling the 'end' of traditional 'isms' or dogmatic belief systems like Marxism, socialism, and others that have historically shaped society.
In postindustrial and postmodern societies, social movements transcend previous organizational structures and ideologies. These contemporary movements, often highlighted within New Social Movement Theory, are more fragmented and diverse, focusing on various aspects like identity, culture, and global environmental concerns rather than adhering to a single, unified ideology. Examples include ecofeminism and transgender rights movements.
In the same vein, the decline of religion in technologically advanced societies as noted by philosophers like Nietzsche, and the shifting allegiance towards movements such as conservative populism or religious extremism, also reflect this ideological flux. Additionally, the emergence of alternative and resistance movements also signals a shift from broad societal changes to limited, specific changes focusing on individual beliefs and behaviors, further contributing to the fragmentation of traditional 'isms.'