To refuse to listen to someone’s cries for justice and equality until the request comes in a language you feel comfortable with is a way of asserting your dominance over them in the situation. The oppressed person reaching out to you is already disadvantaged by the oppression they are trying to address. By tone policing, you are increasing that disadvantage by insisting that you get to determine if their grievances are valid and will only decide they are so if, on top of everything they are already enduring, they make the effort to prioritize your comfort.