Much of the church practices a revisionist view of marriage. If you suggest to the average chaste gay Christian that he ought to consider the possibility of getting married, it’s likely to be the revisionist view of marriage with which he’s going to wrestle. And he’s probably going to be dealing with an understandable level of frustration and bitterness at well-to-do suburban evangelical lovey-dovey couples who have baptized revisionist marriage and made it shallowly outwardly conform to a paper-thin image of marriage in Scripture. This is my own experience over the years.
A fulfilling romantic desire for a spouse (though good and welcome) is not a constitutive element of natural marriage. Telling that to a Christian with same-sex attraction is a hard pill for him to swallow, because few people in our culture ever swallow it. It’s implausible. Nobody is living it in sight of us. It’s not commonly promoted. Even the idea of marriage as hard and ugly and covenantally locked down is absent in our culture.
Lax divorce laws signal to everyone that we don’t have to and aren’t expected to maintain marriages when they becomes too much frustration, or we become disillusioned that the fairy tale didn’t last. A celibate gay Christian is likely to think you’re asking him to go into a marriage in a condition emotionally comparable to the condition in which most people nowadays are getting out of a marriage. Who can blame him for thinking that?