This is incorrect. "Replacement" theology is a misnomer. I'm not sure where the name came from but it is an inaccurate description of the theology.
Replacement Theology does not claim that God destroyed Israel and replaced them with the Church. Replacement Theology follows Pauls doctrine and states that Gentiles are grafted into the true Israel, the believing Jews. All believers, Jews and Gentiles share in Gods covenant as Christians. All unbelieving Jews and Gentiles are outside of Gods covenant as unbelievers. Israel was never destroyed. Christians are the true Israel.
Heb 8:10 "FOR THIS IS THE COVENANT THAT I WILL MAKE WITH THE HOUSE OF ISRAEL AFTER THOSE DAYS, SAYS THE LORD: I WILL PUT MY LAWS INTO THEIR MINDS, AND I WILL WRITE THEM ON THEIR HEARTS. AND I WILL BE THEIR GOD, AND THEY SHALL BE MY PEOPLE.
Amen.
God is not schizophrenic. His plan today is the same as yesterday's plan and tomorrow's plan -- for Jesus Christ to gather God's flock, all believing Jews and Gentiles, and bring them home.
Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called. That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed." -- Romans 9:6-8"Not as though the word of God hath taken none effect. For they are not all Israel, which are of Israel:
I believe in a replacement theology of sorts, or rather an addition theology.:
Rev 12:17 And the dragon was enraged with the woman, and went off to make war with the rest of her offspring, who keep the commandments of God and hold to the testimony of Jesus.
The Nation of Israel today only has half of the recipe, and those of you who spend your days trying to convince us not to keep God's 4th commandment only have the other half.