Dudes don't get the concept of living way back in 1500 BCE. People back then HAD to have large households to support themselves and for protection. That's the reason for polygamy.
Each family was a business. Self-sufficient and self-policed/guarded. They also aligned with other families to increase/strengthen those aspects of their organization.
When people began migrating into cities, the circumstances that warranted polygamy were no longer applicable. No chance of your families' tents being raided.
Exactly, it was necessary at the time but it wasn’t what The most high wanted or intended when he created man and women but he allowed it due to mans transgressions and for a purpose and time.
1 Timothy 3:1-2
How bishops and deacons, and their wives should be qualified
1 This is a true saying, If a man desire the office of a bishop, he desireth a good work.
2 A bishop then must be blameless,
the husband of one wife, vigilant, sober, of good behaviour, given to hospitality, apt to teach;
an elder MUST be the husband of ONE WIFE. If it is a good practice, then why should not a church leader be a polygamist?