The New Testament is scripturePost any Scripture from the Old Testament saying that Gentiles are an Olive tree, or a "wild" Olive tree and you'll have an argument.
Psst...you won't find one.
Therefore, your interpretation that Gentiles are an Olive tree let alone a "wild" Olive tree is a lie.
See you do not believe scripture
Romans 11:19–24 (KJV 1900) — 19 Thou wilt say then, The branches were broken off, that I might be graffed in. 20 Well; because of unbelief they were broken off, and thou standest by faith. Be not highminded, but fear: 21 For if God spared not the natural branches, take heed lest he also spare not thee. 22 Behold therefore the goodness and severity of God: on them which fell, severity; but toward thee, goodness, if thou continue in his goodness: otherwise thou also shalt be cut off. 23 And they also, if they abide not still in unbelief, shall be graffed in: for God is able to graff them in again. 24 For if thou wert cut out of the olive tree which is wild by nature, and wert graffed contrary to nature into a good olive tree: how much more shall these, which be the natural branches, be graffed into their own olive tree?