“Christian is a gentile term, to be used only when speaking of gentiles, unless you are a gentile turned messianic Jew.”
The disciples were Jewish and they were followers of Christ (which is what a christian is). Christ started the christian faith. Did that make Him any less of a Jew? Then again, maybe I’m missing your point.
It had to do with members of this forum and the larger MJ community who believe the term "Christian" is only appropriate for gentiles.