When I see politics in software updates or documentation, nothing happens because I'm not looking to use the software for political activism. Maybe I tell my adblocker to remove the messaging, and carry on with my task.
I can engage with politics in a social context, when political messaging isn't interrupting something else I'm doing; that's a better place for activism, IMHO.
I almost always see activists using the argument that if I don't like the messaging then I'm part of the problem. Somehow I doubt that, given I don't mind messaging at all, where it's appropriate.
apparently, it's OK to have this stance of "if you're not with us, you're against us".
It's absolutely possible to not want political discussions in various places - it doesn't mean you support one or the other side. It simply means you don't want that discussion here. You could support the incumbents or not - not wanting the discussion does not imply support for the incumbents.