Do only SC/ST feel bad when called by their cast?

 Today Sadhvi Pragya Singh said that only SC/ST feel bad when they are called by cast and other cast don't feel bad when called by their cast. 

It is not true that Brahmin don't feel bad when they are called pandit. I have seen 50 years old priest fighting with a 80 years old lady because she called him "oye pandit" instead of calling him pandit ji. He should not have felt bad considering age of the lady she was of the priest's mothers age. But still he called many bad words for the lady of his mothers age just because she called him by his cast. What matter is the intentions of the person by calling a person by cast. I have seen people calling SC/ST as SC/ST and people on protesting but I have seen people protesting when called SC/ST also.

If person is a teacher and he is son of a sweeper then why do we call him a sweeper? He is not a sweeper but a teacher and maybe better teacher then other teachers of the school. Still why do we want to call him a sweeper? If you praise him for working hard and becoming a teacher despite being a son of a sweeper then he will not feel bad but if you say that he is a bad teacher because he is son of a sweeper then he will feel bad.

I already gave an incidence where a Brahmin felt bad when he was called by name of his cast.