They are castrated during childhood for these roles, and then placed on tranny meds for the rest of their life + surgeries to hide their male features. If you bothered actually watching the documentary, you would know this.
This is a continuation of a catholic/papal tradition (another jewish institution).
First off, trooning out at a young age doesn't matter, they still end up looking like the men that they are. See: Kim Petres, Jazz Jennings, and NikkiTutorials. All were trooned out as kids, all ended up massive, tall, and their male features won out anyway. Turns out, castrating men just makes them taller and fatter, and this has been known since Eunuchs existed.
Second, I watched a few minutes of the documentary and his "proof" is garbage. He uses unflattering photos of women and claim they are male because they have a small Adam's apple. His other "proof" is women with shoulders wider than their hips. It's called being an inverted triangle, many women have that body shape (myself included). His other "proof" was brow bossing and non-round foreheads, which is funny because he only picked certain women for this example, and even those examples were reaching. Ignoring the fact that lots of women, especially women of certain ethnic groups, have those features naturally, some of those photos were clearly a result of bad angles and bad lighting.
I tapped out once I saw that his other "proof" was about men having longer and thicker necks than women. It's not that I don't agree with him, it's that his example showed the exact opposite of that. Only two of those women had long and broad necks, the rest looked completely normal and small next to the male example he used.
I hate the troon menace and Hollywood perverts as much as the next person but this documentary is lame and I hope whoever made it did so as a parody and do not seriously believe this garbage.