It is the view that I used to hold before my own transition, by the way. It's convenient and simple, captures most of the truth, and is generally useful. Generally. Just don't look too closely at the fine details.
Anyway, although I don't agree with this simplification, Purple Speaks is a very good blog to learn about the HBS movement. Written by someone sane, rational, polite and witty. e.g. This one, that brought a smile:
There are people who do not know the difference between the medical condition of True-Transsexualism and the choice and perversion of transgenderism. That includes those who are ignorant, practicing perversion, Wikipedia writers, and people with agendasOn to Transsexual Surgery, its Pros and Cons by Anne Lawrence. To say that Dr Lawrence is "controversial" is like saying the core of a supernova is moderately warm. I disagree with her views completely on Autogynephilia (AGP) theory, and believe she is trying to universalise her own personal experience to everyone else. Views of her own experience that were the result of painfully honest introspection on her part. I also believe she's been most unfairly treated by many in the TS community, especially as regards allegations of personal misconduct which, after some investigation, I believe were the result of prejudice.
That doesn't stop me from believing that while she's excellent at data gathering, her conclusions are usually very iffy. But she has Integrity.
Anyway, it's about time I was a little less monocultural myself. If my opinions are valid, they can do with a bit of challenging.