Isn't that all language is? An appeal to what others think you mean? This ofc is why people like to push definitions in different directions. I think you're say

Isn't that all language is? An appeal to what others think you mean? This ofc is why people like to push definitions in different directions. I think you're saying, "Christian should mean XYZ," while I'm pointing out most people don't hold your meaning. If you want everyone to adopt your definition, you need to give a compelling reason. However, I've heard so many other people who call themselves Christian claim that all the other so-called Christians are not really Christian, that I don't really trust any particular Christian's definition. It's easier to just say, "Christian means someone who claims to be Christian".