Champagne socialist

[3] The phrase is used to describe self-identified anarchists, communists, and socialists whose luxurious lifestyles, metonymically including consumption of champagne, are ostensibly in conflict with their political beliefs.

[2] This argument claims that the champagne socialist espouses leftist views while enjoying a luxurious lifestyle; one example might include Labour Party supporters who stereotypically live in Inner London and consume highbrow media.

This usage of the term has been criticised by Caitlin Moran as a fallacious argument, because she claims it assumes that only those who are poor can express an opinion about social inequality.

[15] Current Affairs ran a lighthearted article featuring a political cartoon of guests at a Marxist gathering dressed in fancy attire and sipping on champagne.

[17] A 2021 article in the libertarian magazine Reason written by Jason Brennan and Christopher Freiman derided Bernie Sanders, Elizabeth Warren, and political commentator Hasan Piker as so-called "champagne socialists."

In the case of Sanders and Piker, Brennan and Freiman criticize their supposedly excessive living arrangements, while Warren is reprehended for donating only a small portion of her net worth to causes she advocates for.

The term references champagne as a symbol of affluence.
British Prime Minister Ramsay MacDonald