If it gets bad enough to pull him into outright homosexuality or related paraphilia, this can raise the issue intensely enough to force him into seeking a solution. The solution can, in fact, be found within the bounds of small-o orthodox Christianity. And in the process, he will learn more things about God than most “normal” church goers ever dreamed about.
Yes, if he’s lucky enough to have access to an outlet like that. I doubt many people in that situation realize there are ‘helps’ out there.