Anit-bigamy statute partly unconstitutional (the "Sister Wives" case)

In a long  opinion  (Brown v. Buhman),  U.S. District  Court judge Clark Waddoups ruled that Utah's criminal anti-bigamy statute is partially unconstitutional.  The suit involves people from the controversial "Sister Wives" reality show and book. This is just a logical extension of the U.S. Supreme Court's rationale in Lawrence v. Texas.     See the excellent analysis by Ruthann Robinson.  I agree with the result.  As long as there is no  coercion, abuse or fraud, competent adults are involved, and the interests of children are protected, my libertarian side says bigamy should be lawful.