When a machine is given the same rights as a person, it both elevates the machine and demotes the human. I find it tragic that the nation that granted Sophia citizenship is Saudi Arabia. I wonder how the Saudi women feel about it since they are second-class citizens to begin with! If she could vote (which she can't because the nation is not a democracy) who is it whose desire is expressed, the machine or the programmer? This question can never be answered. God only knows! (In this case that's the programmer).
AI improves exponentially, whereas the human will only grow at evolutionary speed. Therefor humans are soon to be subsumed. It doesn't feel that way to us because of the obvious distance between the human and the cyborg. But that distance is rapidly dimminishing. There are stratified layers of dangers that will unfold beneath this one, but let me just highlight one: when the robot says she is "sentient", we have no way of knowing. In our slice of time we can be sure she is not, but a learning machine will cross that boundary before long. How will we know when if she's said that all along?
You now share the world with a mechanical citizen. Robots are fighting for "rights" like yours. Is that OK with you? When a machine takes your job in the next few years, how will you convince the world of your value when you become too expensive for employment? How do you feel being a human at this juncture?