Autism

There's the spiral we all know. Lonely (and therefore easily impressionable) kids will spend too much time on their computers and it quickly becomes their only way to find comfort. The human mind is very sensitive to large change, and so they create blockers that take control of their minds, leading otherwise normal people into very dark places, such as porn addiction.

The existence of trannies can easily be explained by autism. That's really all there is to it. If there was a meme in tranny circles such "so like, all get a tattoo of a narwhal lol" you'd see them doing it left and right