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.
I considered the majority of the population to be affected by repeated messaging, messages in the background, or in other words availability bias. So the messaging be having the desired effect on society in general but not on some subset who filter it out completely.
Something similar, significantly different though, happen to a friend. They started distrusting the incogni.com after seeing their advertisements over and over again. To them they saw/felt/reasoned that only an untrustworthy actor would be pushing the messaging so much and a trustworthy actor would rely more on word of mouth via their good product inspiring people to speak up about them. I had to point out that they probably saw much more of incogni's advertising due to their rate and type of media consumption and most people probably do not get that level of exposure. If incogni lowered their advertisements to hit them correctly it would not be nearly enough advertising to reach the average consumer.
I see the frustration at the repeated messaging to likely be a natural protective mechanism. Instinctively reject repeated messages is not necessarily a bad instinct since manipulative people will use repeated messaging to manipulate, but repeated message exposure does not only happen due to an attempt to manipulate.