How is Hinduism barbaric?
The left-hand tantra part of Hinduism allows for a lot of nice things. Hindu isn't what we are though - that was a term coined by the muslimes. They called all the people who lived opposite the Sindhu river "Hindus" because the muslims could not pronounce the "S" properly, instead pronouncing it as "H". The real term we prefer is Sanathan Dharma, the Old Religion or Eternal Religion.