Theseus
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Performative Outrage' describes a public display of anger or strong emotion regarding a societal issue, primarily intended to signal one's virtue or alignment with a particular group or viewpoint, rather than stemming from a deeply felt personal conviction or leading to substantive
An example from recent British politics is when the PM overdid his anger about the 'blatant racism' of the right wing Sarah Pochin's clumsy reply to a radio listener's question about the over-representation of black and Asian actors in adverts as not reflecting fairly the present demographics of this country.
Earlier on in the year, however, the same PM had very controversially described Britain as 'an island of strangers'.