Preliminary reading: Gender Identity Crisis
As society changes, we begin to accept new norms. For instance, homosexuality is now not taboo or a mental illness, but an expression of self that is celebrated. Same with transsexuality.
To be frank, if the Bible is true, these thoughts are sinful. But the problem is that society teaches us that they are OK. So instead of labeling the thoughts as wrong, begin to accept them as a part of ourselves.
So you see, as society works one way, God works another. In this case, norms train our developing youth to label thoughts as good or normal that are anything but. So instead of being a troubled kid or someone going through a hard time or trying to find himself, he finds himself in something he shouldn’t.
If we can’t identify the sin, there is no way to overcome it. If you can’t see the devil, you can’t defeat him.