Nice try. You best go read the O.T. again. He even told Hosea to go marry a whore. Not justifying polygamy or whoredoms; just sayin’ .
Sweetie, you read the story in full context.
You want to have polygamy acceptable apparently for your personal reasons be my guest, it is not Biblical.
God defined marriage in the OT and NT, if you have a problem with that take it up with God.
19 Now the Lord God had formed out of the ground all the wild animals and all the birds in the sky. He brought them to the man to see what he would name them; and whatever the man called each living creature, that was its name. 20 So the man gave names to all the livestock, the birds in the sky and all the wild animals.
But for Adam[f] no suitable helper was found. 21 So the Lord God caused the man to fall into a deep sleep; and while he was sleeping, he took one of the man’s ribs[g] and then closed up the place with flesh. 22 Then the Lord God made a woman from the rib[h] he had taken out of the man, and he brought her to the man.
23 The man said,
“This is now bone of my bones and flesh of my flesh; she shall be called ‘woman,’ for she was taken out of man.”
24 That is why a man leaves his father and mother and is united to his wife, and they become one flesh."
(From Genesis 2)
Note the Scripture says "a helper"; "a woman"; "his wife." All singular, nothing plural. God's perfect plan was for one man and one woman to come together, and, as usual, we managed to screw up.