In this context "politics" clearly conveys "things directly related to governments, such as wars, elections, or socio-economical ideologies". It is only a subset of the definition of politics that you're probably using, something like "things direct or indirectly related to human groups and their conflicts of interest".

We got a whole Lemmy to talk about Israel vs. Hamas, late stage capitalism, elections etc. We could - and should - have at least one community to chill and talk about other stuff, and without that rule we won't have it. For example without that rule 99.99999% of the content as of late 2024 would be about Trump, as if Americans didn't have multiple communities to talk about it already.

It's a good rule of thumb for media, but I don't care for it's use as a justification for constantly spamming low effort political memes like on r/adviceanimals. Winding yourself up about things you can't control doesn't make the world better, it just fucks up your mental health. There are no shortage of political communities to use on this site.