Human rights are just a tool that allows big collections of intelligent agents to function in groups together. If we have to live with AI's, it follows that we must use those tools with them as well.
There're intrinsic values in consciousness itself. We can't treat GAIs as mere tools without considering its own wishes and ends, the same reasons we can't treat slaves or farm animals as mere tools. We should respect their consciousness for the same reasons we respect humanity.
Human rights are a tool that allows a big collection of agents that are *ends in themselves* to function together. AIs, like other machines, will be developed to meet human ends, so they will not be "ends in themselves."