Andy didn't want you to have a clue, he wanted to change the subject. You raised a valid and accurate point, and Andy chose to make it about you so he could continue to evade your point.
Yes, from asking him to support "born that way" and it's "genetic" to when confronted he said it's the "parent's fault".
It's about supporting the honor of his Sodomite friends for sure, a coping mechanism indeed.