The scare quotes remind me the Christian community runs lousy with believers who assert those other Christians are not true Christians according to a personal standard.
It's a standard that drastically changes depending on the individual. Some believe those who suffer LGBT+ folk cannot be true, while others would challenge the countless Protestant Evangelists in the United States Marine Corps who are expected to follow orders to kill without reservation.
As an outsider, I use the same model as the LGBT+ community, that someone is valdlid if they identify as a thing, which works for Christian as well as it does for Lesbian