The Catholic church says exactly this. There is no such thing as a "gay" person, any more than there is a "thief" person or an "adulterer" person. Inclinations are one thing...a result of our fallen nature. Actions are another. You should love all people, and recognize that you too are a sinner. But unrepentant embracing of sin--and homosexual activity (along with all other non-unitive, non-procreative expression of sexuality, which are properly understood as abuses of the sexual faculty) is a sin--are not to be accepted, and certainly not celebrated. Love of neighbor means wanting what is best for them, even if that's not what they "want" for themselves.