That is the surprise. The doc shows how when he tells people he is a Pakistani albino, they don't take him at his word but try to tell him who and what he is based on how they see him. Even the passive reactions to his appearance were wrong.
Nobody correctly identified him or his siblings as albinos.
It's just a part of the real horror show. Witch medicine advises HIV sufferers that they can cure themselves by having intercourse with a virgin. You can guess what happens next.
As I said, this is a topic of some complexity...
I have a fair idea of how this came about, but I'm waiting for a PWI vet of a certain POV to turn up with some stats "proving" that "they" brought it upon themselves... but one dimensional thinkers need not apply.