Started delving into the question of whether Hellen Keller actually wrote the books she is claimed to have written and noticed it's really hard to find discussion on the topic
Most people wondering whether she was "a hoax" are simply asking, or debunking, the notion that she was deaf and blind, which we have pretty good evidence to support, but strangely the jump from that to "oh ok I guess she was legit" never stops at the question of whether or not she actually held the beliefs she did of her own accord and wrote all those books on the matter, and I can't tell when it's people simply misunderstanding the question, and when it's an intentional misdirection
Aka
"I think Hellen Keller was a fake"
"No she was actually deaf and blind"
"But I don't think she wrote those books"
"Dude she was totally deaf and blind"
"I'm talking about the books-"
"Man how much more proof do you need that she was deaf and blind!?"
"...Books?"
"YES, she WAS DEAF and also BLIND, STOP ASKING!"
I think the truth lies somewhere in between.
She was deaf and blind. She did learn to communicate. Yet not to the level or to the achievements prescribed to her. That was done by the facilitators, possibly unknowingly. Where they are communicating for her, but with what limited communication she has. They are interpreting it and expanding upon it. They're speaking on her behalf and generating most of what they are saying Hellen is saying.
She was meant to be able to type with braille. Whatever she wrote then would have gone through her facilitator, who then cleaned it up, rewrote, expanded up and pushed what they though Hellen meant to say or would say. Hellen writing a book about her life and how she learnt to talk. With the help of the person who was with her that whole time, teaching her. Hmmmz
She had only a couple of main facilitators over the years. So they would know everything about Keller and her alleged works. They probably projected a lot onto Keller, which then came out when they were speaking on her behalf.
Questions about if she really wrote her works are met with statements like, "Hellen could answer questions about her works in public, proving authorship."
Ignoring the fact the person communicating the question to Keller and providing her answer was directly involved in Keller writing that book or essay. They would know the essays and what they believe her answers would be.
Even watching some clips of Keller talking, the facilitator seems to me mouthing what Keller is saying. Before restating it in clear English. Keller is clearly not speaking off the cuff and it is rehearsed. Does she even know what the noises she's vocalising even say or is it a parlour trick?
If she could communicate with lots of different people, it would be another story. When the people she is communicating with an producing her works are people intimately close to her for large portions of her life. It certainly makes it very possible what I think went on. Then with fame and attention. I'm sure they lead to pushing things. Political activisim and stuff. Using her as a prop.