First of all,
Transgenderism isn't a mental disease or disorder. This has been proven many times by science, not religion. Being trans is literally just switching your gender to how you prefer. Nothing wrong with it. There are no ill effects to it, and it doesn't effect others either. Also, "tranny" is extremely offensive to trans people (even though I doubt you care)
Second of all, where does it say that the people in the magazines HAVE to be cis? And why are you so offended by a mere magazine with one trans person?