the problem is that you didnt address the point, you told a long story and made up some justification for the number 10. you explained nothing.
if you want to address polygamy then do so.
And Lamech took unto him two wives.
Now Sarai Abram's wife bare him no children: and she had an handmaid, an Egyptian, whose name was Hagar. And Sarai said unto Abram, Behold now, the LORD hath restrained me from bearing: I pray thee, go in unto my maid; it may be that I may obtain children by her. And Abram hearkened to the voice of Sarai. And Sarai ... gave her to her husband Abram to be his wife. And he went in unto Hagar, and she conceived.
But unto the sons of the concubines, which Abraham had....
Esau ... took to wife Judith the daughter of Beeri the Hittite, and Bashemath the daughter of Elon the Hittite.
Then Jacob rose up, and set ... his wives upon camels.
If he take him another wife....
If a man have two wives, one beloved, and another hated....
And Gideon had threescore and ten sons of his body begotten: for he had many wives.
1 Samuel 1:1-2
Elkanah ... had two wives; the name of the one was Hannah, and the name of the other Peninnah.
2 Samuel 12:7-8
Thus saith the LORD God of Israel ... I gave thee ... thy master's wives....
1 Kings 11:2-3
Solomon ... had seven hundred wives ... and three hundred concubines.
1 Chronicles 4:5
And Ashur the father of Tekoa had two wives, Helah and Naarah.
2 Chronicles 11:21
Rehoboam ... took eighteen wives, and threescore concubines.
2 Chronicles 13:21
But Abijah waxed mighty, and married fourteen wives....
2 Chronicles 24:3
Jehoiada took for him two wives....
Then shall the kingdom of heaven be likened unto ten virgins, which took their lamps, and went forth to meet the bridegroom.