He appeals to the Messiah.
THAT is what makes someone part of the body of Christ.
Anyone who wants to kill him for not belonging to their particular denomination is not a follower of Jesus.
If he dies for his faith in the Messiah, and refuses to renounce him, he is a martyr and will receive a martyr’s reward.
The big problem is the worldly mindset that has infected religious thinking that a church congregation or denomination is a relationship with God through Jesus.
It’s on an individual lever, not a result of church or denomination attendance, membership, or affiliation.
So, yes, he is a lamb to slaughter. Thank you for your honesty.