Try as we might, we'll never outwit the powerful mind of Louie Gohmert:
We could take four heterosexual couples, married, and put them on an island where they have everything they need to sustain life. Then take four all-male couples and put them on an island with all they need to sustain life, take four couples of women, married, and put them on an island, and let’s come back in 100 to 200 years and see which one nature says is the preferred marriage.
Of course the four couples of women could survive into future generations, via in vitro fertilization. The only danger is that the anonymous sperm donors might in fact come from the Gohmert clan, in which case we'd dock, in the 22nd century, on the Island of Dr. Moreau.