I’m aware of the “silence is violence” slogan. It means that inaction in the face of injustice is tacit support for the status quo. It doesn’t literally mean, for example, that all people are being violent while they are sleeping, or that people who are unable to speak are being violent. I’m sure there are some people who use the slogan in preposterous ways, but that’s true of all slogans. You’re looking into this way more than necessary. There’s a pretty clear reasonable interpretation of the slogan if you’re willing to look for that interpretation in good faith.