In addition to Cowbee’s comment, the Prolewiki article on Socialism expands on it.
“Human nature” is formed by societal norms, which are in turn formed by the present mode of production and thus material reality. Humans aren’t racist by nature lmfao, such a dumb right wing assertion.
Simply put, materialism — as opposed to idealism — is the idea that everything we do and experience as a society (our history, culture, politics, etc) is shaped by the material reality around us, rather than ideas.
“Material analysis” in this case therefore means analysing politics and history through this lens. And it’s a fundamental component of socialism/marxism.
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Yogthos is insulting liberals because liberalism is an idealist ideology that always eventually gives way to fascism when a capitalist state is (inevitably) in decay.
Watching the video would help. Basically, it’s a barely-held-together coalition that won’t last for very long. Meanwhile the far-right has massively risen in popularity over the last few years.
Kinda impressive tbh as irrelevant as this is, mandarin’s pretty hard to learn as a second language