Re access to articles, any teenager or friend at any uni can download and email these articles. There are people on here who can do that for each other if needed- someone could set up a Dropbox, maybe.
These articles are not THE basis for anything. They are a small sample of what I have read. Academic literature works as a body of work so really to get the overview you have to read lots of it. Individual media-based case studies like Jazz Jennings are not a good basis on which to base an opinion (as many have argued, people want big numbers). There are literature review articles which are specifically designed to gather together prior research, but the ones posted here also have their own lit reviews.
The journals are actually quite highly rated. The last article (Sansfacon et al) is a project led by the Canadian Chair of Transgender Children and Families- a ten year govt funded professorship. It's an early summary of the Canadian dataset but other data is coming in to that project from around five other countries.
Longer term datasets covering several years, plus large surveys to pick up quantitative data are currently ongoing, although people like Zucker (see article above) situate their work within a vast body of work going back to the 80s.
Blockers have been in use for years for other conditions, so would have gone through double blind trials before becoming available. Re blocker side effects, like any medication it's a question of how much someone feels they need it. ADHD, depression and OCD can all be treated with meds which have horrible side effects, including sexual dysfunction, but people have to decide every day which imperfect option to choose.
I am on my phone now so can't post any articles re what people called ROGD but from what I have read and can post later, it is not a robust phenomenon. One big problem with it is that the concept relies on the notion that kids would tell someone when they start feeling that something is wrong- they often don't, and we know that from plenty of other contexts.
The idea of doing a double blind trial on existing trans kids isn't ethical when the vast body of international data, including longterm retrospective data, points firmly towards affirmative care as the approach with the best ourcomes for children's mental health.
As I said I am busy today and not on a computer but I'll check back and try to respond again later