Wasn't much of a bother when, from 1969-1973, marriage was comprehensively redefined by the States and the courts.
There was a recent article (can’t remember the author) about the national psychiatric conference in 1973 where they rescinded their position that homosexuality was a mental disorder. The author of the article investigated the conference and discovered that many of the chief people at the conference making the decision to redefine homosexuality were themselves homosexuals. In short, there was no scientific analysis, they just decided that homosexuality was as normal as heterosexuality.