I'm sorry, you cannot take this as justification that the covenant God made with the Jews has been revoked. God does not go back on his word, He has extended the grace given to the Jews before Christ to the gentiles.
We are like new branches grafted on the old -- we are not replacing the Jews but are now partaking with them and yet by accepting Christ's blessings we are partaking in the new covenant and in His grace.
The Jews who accept Christ's blessings are doubly blessed, but those who do not accept Christ are not "replaced"
ABSOLUTELY INDEED.