"and confessed that he was in a same-sex relationship with another student and that he was inclined to continue that relationship and did not believe it was a sin."" An Intervarsity leader confesses to immoral (Lev 18:22) and unnatural (Rom 1:26) practices, yet cannot see the sin? Satan has blinded this fellow.
The problem is twofold; (1) They do not know who wrote the Bible, and (2) They are unregenerate.
Gal 5:19 Now the works of the flesh are manifest, which are these; Adultery, fornication, uncleanness, lasciviousness, ......
.... they which do such things shall not inherit the kingdom of God.