I couldn't watch any more of that video - sorry

all those white men ... pretending to be holy by speaking soft ...
and not just supporting but promoting a thing that was literally
built on the backs of hundreds of non-white human slaves - including children

when your husband says it sounds like "a call to arms" ... I believe it

Negro slavery already exists … not more than one hundred negro slaves now in the Territory. The law under which they are held is as follows, (Territorial Laws of Utah, p. 161, chap. 17, sec. 3:)
"That any person bringing a servant or servants, and his, her, or their children from any part of the United States, or other country, and shall place in the office of the probate court the certificate of any court of record under seal, properly and shall place in the office of the Probate Court the certificate of any Court of record under seal, properly attested that he, she, or they are entitled lawfully to the service of such servant or servants, and his, her, or their children …"

[link - U.S. House of Representatives, page 287, 3rd column, 5th paragraph under "African Slavery" - you'll have to scroll a bit](https://books.google.ca/books?redir_esc=y&id=WmIUAAAAYAAJ&q=dreg#v=snippet&q=%22Utah%20Territory%22&f=false

This patriarchal institution, when upheld by real Mormon patriarchs, assumes a new shape. It calls things by a softer name, and instead of slaves, we have "servants"

U.S. House of Representatives, page 287, 3rd column, 7th paragraph under "African Slavery"

But there is another type of slavery to which I will call the special attention of gentlemen who are going to ask the unanimous reprehension of Congress against the Cooly traffic [1850s human trafficking]. Not less than four hundred Indians, children or adults, are today held in bondage in Utah under the pretense of apprenticeship. It will be observed that this is the same sort of "whipping the devil round the stump"

definition of whipping the devil round the stump - to evade a responsibility or duty in a roundabout manner; to get deviously around a difficulty U.S. House of Representatives, page 287, 3rd column, under “Indian Slavery”