Secular therapy has usually failed to produce lasting results, since same-sex attraction is not only a psychological problem but has demonic and spiritual elements. But that doesn’t mean it isn’t supposed to be classed as a disorder. People just need to know what they’re fighting.
Same sex attraction is a temptation to commit the sin of sodomy. As such, it is primarily a spiritual problem which demons can and will exploit. Merely secular attempts at solution are doomed to failure.
God's Grace is necessary.
Our help is in The Lord, who made Heaven and earth.