For some that will mean getting the help or expertise of a counselor that can help them walk through and navigate through some of the traumatic things that they've been through in their life. But to say that people who have same-sex attractions are the only group of people who need to go to a therapist to completely resolve those attractions isn't something I find biblically accurate.
The sex relation is not a personal relation. It can be irresistibly desired and rapturously consummated between persons who could not endure one another for a day in any other relation.
I have been to this point unwilling to sign on to same-sex marriage primarily because of my understandings of the traditional definitions of marriage. But I also think you're right that attitudes evolve, including mine.
We feel strongly that the spirit characteristic of America at its noblest, above all the pursuit of higher learning, cannot admit of any conditions as to personnel other than those designed to promote the objects for which this institution is established, and particularly with no regard whatever to accidents of race, creed, or sex.