The “True Christian” question has been hotly debated for thousands of years and never solved. Of the tens of thousands of Christian denominations in existence today, not a single one is likely to believe itself the anti-Christ or “not the True Christians, Trademark.”
Many condemn their competitors for God’s love and attention as being “not true Christians” because of disagreement on some technicality of theology or belief or catechism or doctrine. Mainline Christians ostracize Jehovah’s Witnesses and Latter Day Saints as not being Christians at all. Fundamentalist evangelicals accuse mainline Christians of being “Christian in name only. Protestants won’t be caught dead in the company of Roman Catholics. And so on.
This confusion and disharmony among self-identifying Christians may yet prove to be the downfall of the religion, since many leave Christianity for this precise reason. But as to the question “” I can only say “Not according to a great many other Christians. As an outsider, my only definition is this: If a person says they are Christian, they are Christian. That includes many, many more than JWs—about two billion more.