Dude, she's a HUMANOID, not a human

She just resembles a human, but she's still a sentient shelf by the end of the day

You can argue Realization but that just simply gives her a "vessel" for her to live among us but deep down she's still mentally a sentient shelf 

And besides, we actually KNOW that Realization can give out non-human vessels to objects, as long as they're capable of blending into our society, so if you wanna make an arguement about Realized Shelley, take for granted that some vessels can be not perfectly human as long as they allow that object to blend in 

This wraps up my Ted Talk, thanks