WE are not talking about any ole object, we are specifically talking about human value - it is not measurable. You can't measure the worth of human life - it is priceless. Don't you know that? You are one scary dude. We have a name for people like you - sociopath.
Human worth is self-evident. Read the Declaration of Independence. It conforms to human experience and reality. My wife has value becuase SHE IS a person. I love her and the love I feel for her feels meaningful and profound - because it is! The love you feel, however, is nothing more than a chemical process in your brain - the result of some stimuli - matter in motion. Whose model is more desirable? Yours is the preferred model of Stalin and Mao and other evil sociopaths. Your philosophy is UGLY and empty, and the results and consequences of it are UGLY and end in total despair. Under your system, you cannot argue against racism, or genocide - these are subjective to the Stalins of this world!
Persons have universal value whether or not you OR YOUR PAL STALIN believe it. It's an universal fact that applies in 100% of all cases. That's where the concept of human rights come from. You are in disagreement with every civilized government in the history of the planet, save for those that slaughtered humans wholesale!
If it is not measurable, it is not objective. End of story.