FYI to Dorah: Rabbeinu Gershom’s Cherem *only* applies to Ashkenazim. It doesn’t, and never did, apply to Sephardim, Teimanim or any of the other non-Ashkenazim. Many of those Yidden have continued to have multiple wives up to the modern era, in contemporary times. That’s just as beautiful a life practice as any Ashkenazic way of life on this issue. It’s a simple as that.
And if you would read my last comment, immediately prior to your potshot, you would see that I made a very clear distinction between Ashkenazim on one hand and non-Ashkenazim (such as Sephardim, Teimanim, etc.) on the other hand. Reading comprehension is a critical skill.