A thief is in sin even is he does not steal at the moment, sin is a nature not juat an act, it begins in the heart, that is why change of heart is needed.. All of us has sinful nature and God provided the Solution - Jesus. If you are born blind wouldnt you want to see?

Romans 1:26-28 (KJV) For this cause God gave them up unto vile affections: for even their women did change the natural use into that which is against nature:
And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompence of their error which was meet.
And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;