@criffer
The definitions I referred to composing this post:
Oxford New American: “a political approach that strives to appeal to ordinary people who feel that their concerns are disregarded by established elite groups”
M-W: “a political philosophy or movement that represents or is claimed to represent the interests of ordinary people especially against the Establishment”
Wikipedia: “Populism is a contested concept[1][2] for a variety of political stances that emphasise the idea of the "common people", often in opposition to a perceived elite.[3] It is frequently associated with anti-establishment and anti-political sentiment.[4] The term developed in the late 19th century and has been applied to various politicians, parties, and movements since that time, often assuming a pejorative tone. Within political science and other social sciences, different definitions of populism have been employed.[3][5]”
Those definitions certainly include what you wrote, but are not limited to that. It sounds like you have a narrower understanding of the word that common consensus.