It’s really pretty simple. Christians ought to support what the Bible, and the Spirit of God, tell them to. Since the two shouldn’t diverge, that should mean, calling things like homosexuality sin, refusing the idea of Christian homosexual marriage, and treating gay people, as they might anyone else in sin (which is an awful lot of us). That shouldn’t involve things like, doing the people in question harm, or even deriding them. It should include compassion, love, and concern.