One of my former professors (and one of the greatest teachers I have ever had the privilege of learning from), Dr. Mark Lowery, has written a great article on homosexual persons for Ignatius Insight.
Notice that I said "homosexual persons". This is because above all things everyone should be identified ultimately as a person. They are unique and created for us to love, as is everyone. Identifying them solely by their sexual orientation demeans their inherent dignity as persons, which they are before God and man.
Warning: the article is long, but worth it.