Sexual temptation is not willed, and is not a sin.
Homosexual attraction is a temptation.
Homosexual lust (an internal assent to the temptation) is a sin.
Do you see this distinction?
Mat 5:28 But I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart.
Looking..not fantasying, not welcoming it... LOOKING
Sexual temptation is willed every time you LOOK, that your eyes are not diverted, that you dwell even for a second on it .
Sin is conceived in the heart and no one knows the heart except God ...LOOKING..LOOKING