My conspiracy theory du jour is that AGI doomerism is a product of supremacist thinking. AGI futures are purely speculative right? So why are they always doom and gloom?

Why can't an AGI be inherently classless, unconcerned with profit or scarcity, and inherently "arc-ing toward justice"?

Because that isn't good news for nerds who think they rightly sit at the top of a meritocracy. An evil AGI is one that confirms tech is the ultimate unconquerable power that only the tech elite can even hope to master.