@fuckwork utopia is an ideal and materialists are not idealists. i think you might have some things crossed in there (as do many so-called utopian socialists). the point of analyzing the world in this way is to find patterns that betray the actual nature of the system we live under.
whether you are actually able to do something about the status quo is a different question. you can be right about something without having the ability to use it to your advantage. there's a reason why propaganda is so necessary, our oppression starts in our own minds. we are much easier to defeat if we are fractured and disillusioned before the struggle even begins.
it kind of sounds like you're referencing A Nihilist Understanding of Social War which i do think makes some interesting points, but I really don't see why people always turn this into some kind of anti-communist talking point. yes and is way more effective and gains you some (at least temporary) allies in our quest to over throw the capitalist world order.