Just because I don't come to the same conclusion as you doesnt mean I am the one who needs to study more.
Here is a hint from Psalms 14
1 The fool [a] says in his heart,
"There is no God."
They are corrupt, their deeds are vile;
there is no one who does good.
2 The LORD looks down from heaven
on the sons of men
to see if there are any who understand,
any who seek God.
3 All have turned aside,
they have together become corrupt;
there is no one who does good,
not even one.
Nobody as near as I can tell touched on the issue of why one man had several wives in the Bible which explains a lot both as to the legitimate act and reson it was allowed. I see no expressed prohibition as such except in Paul's Letters. The reason it existed wasn't for pleasure it was for survival of mankind. Men died in wars and there were far more women. To survive as well meant large families were needed as the home was ran somewhat like a company.
It caused King David great pain and Solomon as well. By the time of Pauls writings marriages were more likely centered on one man to one woman as under the Roman Empire Israel although occupied was not at war and the male population prospered except for such acts as Herrods orders of killing every young male at the time of Christ birth.
In todays cultures I see no value in it whatsoever. Trying to please one wife and stay out of her way is a plenty. I think that was the heart of Pauls meaning on marriage :>} It served a needed purpose in it's time but I honestly don't think any sane thinking man would want more than one wife :>} It's not saying I would give up the one wife I have as I wouldn't till GOD himself ended our union.