[aMorePerfectUnion]

Here is your specific truth claim:

No. No other siblings were in existence.

You have failed to provide a shred of evidence to support your own claim.

As such, we will categorize it as opinion.

[agere_contra]

Prove that you've stopped howling at the moon.

This is your theory. You still haven't listed any siblings of Christ.

The thread eagerly awaits their names, and your evidence. I really hope that your evidence doesn't rely on a simplistic English translation of adelphos.