Transgendered behavior has been recorded for quite some time. Advertising as a trillion dollar business is relatively new. How about applying Occams Razor? The simpler explanation of transgenderism is that the confluence of nature and nurture is as complex as all other biological processes we know about and leads to all sorts of expressions of gender self identification. I know it’s tempting to succumb to the notion that the universe is so orderly that aberrations must be explained by some overarching conspiracy (or godlike behavior), but that does fly in the face of observed behavior.