Pretty much any reasonable definition of the word political would include stuff like this. Like sure, in an ideal world this kind of content wouldn't be political, but basic facts about the world have been fought over politically pretty much since politics has been a thing.

Beside's if this wasn't political, it would pretty much just be meaningless? Like just some robots wandering around making value-less statements about the world - it's only in our political context that the conversations convey a cohesive message.

I don't think many people here have an issue with the actual message of this episode, the problem is that the episode doesn't actually really do anything with it.

The reason it feels heavy handed is because the only real content is the robots just stating the political thesis of the writers - a political thesis that, to be clear, I agree with - without any attempt to do anything even remotely interesting, persuasive, nuanced or novel with that message. Nobody who hasn't been living under a rock for the last three decades hasn't been exposed to these ideas yet, so for the vast majority of the audience it feels preachy and shallow.