Why did God allow Solomon to have 1,000 wives and concubines? If God's desire is for one man to be married to one woman, why didn't God more clearly condemn polygamy in the Bible?

Links:

Why did God allow polygamy / bigamy in the Bible? - https://www.gotquestions.org/polygamy.html

Why did God allow Solomon to have 1,000 wives and concubines? - https://www.gotquestions.org/Solomon-wives-concubines.html

If a man has multiple wives and becomes a Christian, what is he supposed to do? - https://www.gotquestions.org/multiple-wives.html