Quentin L. Cook says polygamy accomplished its purpose.
Quentin L. Cook, "Church History: A Source of Strength and Inspiration," Liahona (July 2020), accessed May 19, 2023
Plural Marriage
I want to make three points about plural marriage. First, it’s clear that there was a lot of sacrifice in plural marriages. There was a lot of love and unity, but there was also sacrifice, and parents in those marriages taught their children to sacrifice. Many of the children of those plural marriages took the gospel of Jesus Christ across the world and blessed many lives.
Second, there were some, such as Vilate Kimball, who received their own personal revelation—before they even knew fully about what was coming—that this doctrine came from God.
And third, in the senior councils of the Church, there’s a feeling that plural marriage, as it was practiced, served its purpose. We should honor those Saints, but that purpose has been accomplished.
Now, there are unanswered questions. But I want you to know that we have a loving Heavenly Father who has a perfect plan, that His plan is one of happiness, and that we have a Savior who did everything for us. We can trust in Them.