Here are some helpful and informative posts about the transgender issue:
National Geographic’s “Gender Revolution”: Bad Argument and Biased Ideology – Andrew Walker ad Denny Burk (PD)
Federal Court Protects Children and Doctors from Harmful Transgender Regulation– Joe Carter (TGC)
The Transgender Conversation You Need to Have With Your Family – Tim Challies
Alarmism And Transgendered Kids – Rod Dreher (TAC)
What Christianity Alone Offers Transgender Persons – Sam Allberry (TGC)
Brian J. Mikul 
I really loved the article from The Gospel Coition that you listed… can be applied to so many things across the board.