"While the Bible does not address sexual orientation, it does describe appropriate and inappropriate sexual behavior. We acknowledge that attraction to someone of the same gender may be temptation, but not an act of sin (. . .); therefore, those with same-sex orientation, who conform to biblical teachings about sexual behavior, may fully participate in the life of the Adventist Church."

There are multiple levels of meaning in the word "sin".  The foregoing citation distinguishes between sinful desires and sinful actions which is Biblical.  I fail to see that it excuses sin.  Regardless of sexual orientation, we are ALL born sinners (according to Paul).  And the Bible does condemn all forms of sin, including extra-marital sexual relations, judging, reviling, slander, and many others.

From the abundance of the heart, the mouth speaks and the fingers type.  First remove the plank from your own eyes.  Do not overlook sin in yourself in your attempts to correct or enlighten others.