The "ethics" in tech are often wrt the actions if tech companies - in this case it is the actions (communications) of tech customers (or users) and the attempts

The "ethics" in tech are often wrt the actions if tech companies - in this case it is the actions (communications) of tech customers (or users) and the attempts to restrict certain types of communication. Any given service could ban (real) gun emojis, but when the standard excludes it, all services must effectively operate without it.