Which Vedas call Dalits "devils"? In what context are these verses, if any? And why would a majority of the Hindu population not benefit from reading their sacr

Which Vedas call Dalits "devils"? In what context are these verses, if any? And why would a majority of the Hindu population not benefit from reading their sacred texts - Vedas and Gita and such? My literal Sanskrit teacher wasn't a Brahmin, what on earth are you on about?