Remarkably, this [transgender] revolution is happening without any credible scientific evidence to support it. The concept of changing one’s biological sex is, of course, nonsense, as sex is determined by unalterable chromosomes. An individual can change his hormone levels and undergo surgery to better imitate the opposite sex, but a male on the day of his conception will remain a male on the day of his death. And as discussed below, the idea that there is a real personal trait called “gender” that challenges or invalidates the identity significance of biological sex is equally fallacious. But the absence of genuine evidence is simply ignored, and faux “evidence” is created to validate the mania.