Call him out on his wrong doing? He used a weapon you don't like, so that thereby makes his actions morally wrong? Your narcissism is palpable. You think that you can just walk in to a streamer's chat, talk shit, and they are just supposed to sit there and take it? If someone came up to your house and started criticizing you for stupid shit, you'd slam the door in his face. If the harassment continued, you'd be within your rights to call the police and have him removed from your property. You were simply in the receiving end of a digital version of this story. If you don't like the streamer, don't watch the streamer. You gave them ad revenue by entering the stream. And you're giving them free advertising now. So yes, you actually are helping them get money.