I strongly believe that the existence of trans people is more complex than the book lays out, as being sporty or into boy stuff isn’t what makes one trans.
Book relies too much on anecdotal pieces of information, as well as lacking sources.
Author repeatedly misgenders those who’ve transitioned, as well as using straw man arguments.
Being trans isn’t just being a tomboy or a dude who likes dolls. There’s a whole layer of pain, misery, and feeling like you don’t belong in your body that lasts years or decades. You’re better off reading scholarly articles and asking real trans people about this topic than wasting your money on propaganda