The section before this was about the history of Yoga, and I feel the author just had a fucking seizure while watching Fox News, before continuing to write the book. 
Like what.
The section before this was about the history of Yoga, and I feel the author just had a fucking seizure while watching Fox News, before continuing to write the book.
Like what.
You are correct that the thousands of beliefs and sects under Hinduism cannot all be tarred in the same brush as casteist but that specific quote is definitely a nod towards casteism and discrimination against disabled people.