I ate an apple and a peach. Was "it" red or yellow? I know. It makes no sense. There is no answer to such a nonsensical idea.
You first assume that Jesus is God and then squeeze that idea into the verse so as to fit that assumption. How about their being one God i.e., Yahweh and one Lord i.e., Jesus? Two different people, one the true God and the other Lord. That's the simple, unvarnished meaning of 1 Cor 8:6.
Acts 2:36,
Therefore let all the house of Israel know assuredly, that God hath made that same Jesus, whom ye have crucified, both Lord and Christ.
Here we see Jesus was made both Lord and Christ by God. Clearly one person made another person something. And I might point out there is no indication whatsoever that they share in the same essence or whatever, not in this verse nor in any verse in the Bible. For any hint of an "essence" we must appeal to Plato loving philosophers disguised as Christians.
Peter's entire speech in Acts 2 is about what God did for Jesus. Why would God have to make Jesus anything at all if he was God? The entire speech would make no sense if God and Jesus were the same entity.