My first reaction was: why is a non-gender-binary crab mascot considered "political"? I'm assuming this came up incidentally in the context of its name and pronouns?
By this implied definition of political, more or less any human social interaction is political in the broader view.
It’s one example out of many where rust users bring a political topic (and yes, post-gender queer theory stuff is political) into a discussion where there’s no reason to do so except to leverage the discussion as a platform for boosting your political belief. It’s very unprofessional, very counterproductive, and a huge turn off for people who don’t have the same fringe politics.
You're right that it's primarily a social issue, but people will always try to use the state to enforce their social beliefs, so they become political. See New York City's ordinance that can cause those who won't use a made-up "pronoun" to be fined [0], undoubtedly a use of force by the state to enforce a certain set of beliefs.
By this implied definition of political, more or less any human social interaction is political in the broader view.