A person who advocates for consumer rights; also, one who emphasizes consumption as a way of life.
From consumer (one who consumes) plus -ist (suffix denoting a practitioner). The term emerged in the mid-20th century alongside consumer advocacy movements.
Ralph Nader and 1960s activists reclaimed 'consumerist' from being a neutral descriptor to make it mean 'someone fighting for your rights against corporate fraud'—a stunning reversal of tone.
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