Nobody knows who the hell those churches are.
The Mormon church was already broken up by the government because of marriage, and their men thrown in jail so your assurances are empty crap.
This is absolute historical fact. Not only were LDS believers/practitioners in polygyny jailed for "cohabitation", the LDS Church itself had property like churches and temples seized by the government. . . expropriated . . . . and that specified by an act of the US Congress, and signed by the US President, and upheld by the SCOTUS. Members of the LDS Church were barred from immigrating as well. As recently as 1975 when I was stupid enough to marry a girl from outside this country, the US Immigration Service insisted on eliciting an oath from her that she did not believe in polygamy, as a pre-condition for immigration and citizenship.
The LDS Church itself had a large number of a rising generation in the 1880s who were just incredibly opposed to their church's practice of polygamy, sometimes on account of seeing the hardships it meant for their mothers, and really didn't need the stupid government to stop the practice, and today the largest source of folks who are just absolutely disgusted with polygyny are the children of polygynist parents, still.
The reason our government raised the issue over Utah/Mormon polygamy in the nineteenth century was mainly driven by big money interests who wanted to assert claims to Utah resources like mining, coal, railroad lines. . . . during that era, the land policy of the US changed away from encouraging and promoting private ownership of land towards Federal ownership and control of lands and resources. yes, a few stupid "christians" fomented about the diabolical Mormons and their wicked marriages, but the yellow journalism merely exploited those folks so William Randolph Hearst could exert control over mining in Utah. . . well, there were British interests, and the Rockefellers as well. Today, the largest mine, and the most historically long-lived and profitable mine. . . . the Kennecott Copper property, is under the control of the British Crown, the majority stockholder in Rio Tinto. It was developed with Rockefeller and other New York financial giant control. . . .
One interesting note is that Rio Tinto and its predecessor owners secured unusual "rights" from both the federal and Utah governments, to the extent that they own the whole Oquirrh mountain range, with large acreages of the foothills, which are now prime residential real estate.
funny how the rich can just get governments to roll over for them, and just keep getting richer and richer.
I haven't the least doubt that the current rage about LGBT issues, in the hands of government lawmakers, will turn out to be a huge power grab as well.