Okay, so just the first sentence of the article already shows the huge mistake people are making in how they view this issue:
"Evolving". As in, changing for the better, right? So people, scientists included, are seeing this matter as an improvement. Something that is fixing a problem.
As some of you have mentioned before, there may be a serious underlying issue with people, kids, teens, or adults, who view themselves as a gender other than the one they were born with. If that confusion or erroneous decision is viewed as a step forward though, they will not be getting any professional help. There won't be any investigating to resolve the issue.
On the other hand, I found this in the "Young People Ask" book Volume 2:
This is talking about an attraction to someone of the same sex. It is a different issue, but I think something similar may be happening. Here it mentions how a few inclinations may develop in a person, especially during the "bloom of youth", the teen years. However, it doesn't mean as much as people say it does. It is just an inclination that will most likely fade with time. AS LONG AS THEY AVOID THOSE PRACTICES. The way the system is now, anyone with such an inclination is encouraged/ pressured to pursue that sort of conduct, which then makes the desires and feelings much more powerful and permanent.
In the case of gender confusion, it might start out as a faze in a kid's life. Maybe it is something, for most, that would fade as they grow, as long as they avoid acting, dressing, etc. like a gender they are not. But, again, the way people pressure and encourage people to act upon their vaguest inclinations, maybe this doesn't get a chance to fade. It becomes more permanent, and the growing child now adopts it as part of their identity.
It also doesn't help that so much... celebration? is done whenever someone decides they identify with the LGBT community. That might also be difficult to turn their back on.