We have to acknowledge that when most people say “gay” or “LGBT” they do not simply mean that a person experiences attractions to the same sex; they presume that that person is open to homosexual intimate acts and relationships, and that that person rejects the teaching of the Church about the immorality of those actions. So it is dangerous to promote ministries in the Church that employ labels that most people, at least outside the Church, take to imply a rejection of the teaching of the Church.
If a person feels strongly that the appropriate way to refer to his or her experience is with a term like “gay” or “LGBT,” the appropriate response is dialogue: What do they mean when they choose such a label? If they’ve chosen it in order to signal that they don’t accept the Church’s teaching, our response should be a charitable invitation to discuss that teaching more deeply, in hopes of leading that person to understand and embrace chastity. If they mean something different, then we ought to discuss whether that label is the most appropriate way to convey what they believe. In either case, simply taking the label at face value, because the person claims it for himself or herself, means shortchanging them of an opportunity to grow in holiness, conversion and discipleship.