I'm curious about this point. If I don't do business with some company, am I silencing someone? Or only when I don't do business with a company for some specifi

I'm curious about this point. If I don't do business with some company, am I silencing someone? Or only when I don't do business with a company for some specific reason? Now, say I tweet about my boycott of this company. Am I now silencing someone? Since we're discussing the fine details here, can you tell me exactly when my freedom of speech becomes a tool to coerce and silence others in this scenario?