The idea struck Mack as odd and unexpected and he couldn’t keep himself from grinning. 'No, I suppose you aren’t.'" p 182
You can almost hear the crackle of the wicked one as he denies the Christian faith.
"Christian" is defined as one who follows Christ.
"Yet if anyone suffers as a Christian,let him not be ashamed, but let him glorify God in this matter."
1 Peter 4:16
It's obvious that Mr. Young is NOT a Christian, as he out-and-out denies this term.
"I marvel that you are turning away so soon from Him who called you in the grace of Christ, to a different gospel ...But even if we, or an angel from heaven, preach any other gospel to you than what we have preached to you, let him be accursed. As we have said before, so now I say again, if anyone preaches any other gospel to you than what you have received, let him be accursed.
Galatians 1:6-9
Mr. Young is presenting "another Gospel." And this is heresy.