This. It doesn't matter which video you watch for an example. I watched only two, but I'm pretty sure they're all the same.
If you've ever wanted a perfect example of the "uncanny valley," this is it, and it doesn't even involve robots. I wish it did. Then maybe it would be less scary.
P.S. Okay, Japan? We give up. You are the weirdness capital of the entire world. Now can you please back off already?