Of course we are. But not through genetics.
Only through faith.
Luke 8:20 And it was told him by certain which said, Thy mother and thy brethren stand without, desiring to see thee.
21 And he answered and said unto them, My mother and my brethren are these which hear the word of God, and do it.
A category which certianly included his (ahem) "genetic" mother:
"Behold the handmaid of the Lord. Be it done unto me according to thy word."