"...two people wanting legal recognition of their desire to live together forever..."
A sophism of the homosexuals/leftists. Legally, Homosexuals have been able to "live together forever", in most states, for decades; and, in all states since the 2003 U.S. Supreme Court decision in Lawrence v. Texas. Homosexuals want the world to believe a lie which has been propagated by the American Psychiatric Association since 1973: that homosexuality is not a mental disorder. The leadership of the APA was bullied by homosexual/leftist activists.
But, as any honest, logical, and moral person knows, when a person has feelings or behaves contrary to his/her physiology, they ain't right in the head!