Anyone who follows the intense anti-trans propaganda of the day, will have made note of the way the "autogynephilia" theory is used to invalidate transgender women and other gender variant people. "Gender critical" TERFs love the theory, as it allows them to present trans women as perverted predators.
I do believe that most trans folks, especially those under 40 years of age, have never heard of Ray Blanchard. In my earlier years, when I did lots of reading to try to figure myself out, I came across his writings and was appalled by much that he wrote. In this post, which is well worth reading, most of his theories are thrown down the proverbial drain and, for that, I say amen.
A nice assortment of links is included at the end of the post.