Joe, I ask again what does it do for your theology to have the "all things" just mean humans? I really have a hard time reading John 1:1-3 and the focus being on humans. (as you stated)
After all you did ask where in scripture does the word human occur. And when shown, your non-response is telling. Why then would John not have used the word human?
Sounds more and more like, you just want us to trust you on this one.