Yes, we agree! Therefore a "Gentile" does not have to remain a Canaanite, or Moabite, or any other kind of beast that bites, and is free to join the commonwealth of Israel because the wall of partition which had kept separate the Canaanites, Moabites, and heathen, has now been taken down in Messiah. However, one must by faith be willing to become an Israelite according to the doctrine of Yeshua:
Matthew 15:21-28 KJV
21. Then Jesus went thence, and departed into the coasts of Tyre and Sidon.
22. And, behold, a woman of Canaan came out of the same coasts, and cried unto him, saying, Have mercy on me, O Lord, thou Son of David; my daughter is grievously vexed with a devil.
23. But he answered her not a word. And his disciples came and besought him, saying, Send her away; for she crieth after us.
24. But he answered and said, I am not sent but unto the lost sheep of the house of Israel.
25. Then came she and worshipped him, saying, Lord, help me.
26. But he answered and said, It is not meet to take the children's bread, and to cast it to dogs.
27. And she said, Truth, Lord: yet the dogs eat of the crumbs which fall from their masters' table.
28. Then Jesus answered and said unto her, O woman, great is thy faith: be it unto thee even as thou wilt. And her daughter was made whole from that very hour.
One does not get to bring his or her own doctrines into the community of faith in Messiah but must relinquish them at The Door. Otherwise The Door clearly states that he was not sent to that one. And as revealed in the above passage; even "worship" was not the point. The Canaanite woman of Tyre was eventually graffed into the sheepfold of Israel by faith. The RSV is even more clear with the emphatic statement which is made by the Rabbi-Master Yeshua himself:
Matthew 15:24 RSV
24. He answered, "I was sent only to the lost sheep of the house of Israel."
This clear emphatic statement is a stumbling stone to any and all who reject it. It is therefore we, ourselves, which must be willing to change our own mindsets because Yeshua will not be changing his statement or mindset, ever. If one is not willing to become one of the "lost sheep of the house of Israel", as the Canaanite woman from Tyre, and to become "a dog" sitting at the feet of the Master to receive "crumbs of truth-word-doctrine" from his table; then Yeshua clearly states that he was not sent to that one. :)