What is the point of caste anymore?

I don't understand why people give som much importance to caste in this century. Who cares if you are a Brahmin. You take the same local train to work as others. Who cares if someone is Dalit. Why do people just hear that word and go attack the person. They didn't choose to be associated with the caste. It not something anyone earns. It's just a societal construct that people are born into. It has no logic anymore then why give it any relevance? I was raised to believe that my caste is not something to be proud of. It's a useless word associated with my name. I will earn love and respect through my achievements and personality and that is the only right way. No entitlement. Nothing. So what's with the raise in the whole caste BS. Treat everyone like a person. Is that really so hard? P.S: The reservation and stuff I think can be based on financials. Taxes are one way to see where who lies to get reservations. It's not perfect. I am open to discuss other ideas.