Mr Ravi was not allowed to gain temple entry not because he was a dalit but because of being a christian. It has nothing to do with brahminical arrogance and all that. Its unfortunate that a politician is making such damaging statements. For your information I am not a brahmin but reading such statements shows how backward we are in our approach to a particular issue.
Other examples: Yesudas is not allowed to enter Guruvaiyur temple till today. Sabarimala temple was purified because Jayamala entered into that temple some 40 years back. Now Jayamala's controverysy is not because of her caste but because she is a woman and women are not allowed into sabarimala at a certain age and the list goes on. Muslim ladies are not allowed into mosque for prayers. Christian ladies are not allowed to become popes and so on and so forth. Now we have to debate on all these issues. But let us not politicise issues. We have other pressing issues like poverty, poor infrastructure, lack of sanitation etc.