Not true; the SEED will bruise Satan's head--and that seed was Jesus Christ. SEED is the "it" here.Gen.3:15
And I will put enmity between thee and the woman,
and between thy seed and her seed;
it shall bruise thy head, and thou shalt bruise his heel.
Sorry but it does not say He = Christ
But it says it - this "Enmity"
opposition; variance, separation, even to the point killing each other
and of war, amongst us
Easton's Bible Dictionary - Enmity
deep-rooted hatred. "I will put enmity between thee and the woman, between thy seed and her seed" ( Genesis 3:15 ). The friendship of the world is "enmity with God" ( James 4:4 ; 1 John 2:15 1 John 2:16 ). The "carnal mind" is "enmity against God" ( Romans 8:7 ). By the abrogation of the Mosaic institutes the "enmity" between Jew and Gentile is removed. They are reconciled, are "made one" ( Ephesians 2:15 Ephesians 2:16 ).
The Wheat and the Tares
as Paul says
Wherefore remember, that ye being in time past Gentiles in the flesh,who are called Uncircumcision by that which is called the Circumcision in the flesh made by hands;12 That at that time ye were without Christ,being aliens from the commonwealth of Israel,and strangers from the covenants of promise,having no hope, and without God in the world:13 But now in Christ Jesus ye who sometimes were far off are made nigh by the blood of Christ.14 For he is our peace, who hath made both one,and hath broken down the middle wall of partition between us;15 Having abolished in his flesh the enmity,even the law of commandments contained in ordinances;for to make in himself of twain one new man,so making peace;16 And that he might reconcile both unto God in one body by the cross,having slain the enmity thereby: