How do we know you're not?
I probably am but my programming occurs in nature and does not require a sapient creator. Plus specific attempts to alter that programming is almost impossible
Secondly, since the human "machine" has established itself as sentient/sapient in the absence of a creator/superior, then it has the luxury of not having to prove that sapience to anyone
Holograms have a demonstrable creator, can be altered with immense ease and do not adapt unless given the means to do so by their creator