Broadly speaking. Point being, it's easy to not want "politics" in the workplace when the workplace works well for you. If you're someone whom the workplace doesn't work well for, like a person of color, a pregnant woman, new mother, or new father, for that matter, well, then it's a different story.
If you yourself believe that sexism/systemic racism aren't issues that show up (even inadvertently or despite the best intentions of individuals) in the workplace, well, then that's a different conversation entirely.
I think this is different from someone in a position of power promoting a particular candidate in the workplace. That is more complex and problematic. The 2020 election was obviously an extreme example, and, tbh, with things like global warming, I think we'll be seeing more politics like that in the workplace, not less.
Which, to me, means it's not an easy or one-size-fits all solution, but rather, a challenge which requires each of us to exercise care and our own judgement.
For example, personally, I would have liked to see Hacker News take even a small explicit step of endorsing the Black Lives Matter movement (such as putting 'Black lives matter' on the top of the homepage), seeing as how it's one of the major civil rights issues of our present moment. I can also understand their concerns around doing so, even though I disagree with them.
IMHO it's too easy for those of us doing well and making money to forget that the institutions we work for have a social impact and are a part of society.