Come on man, you are much too serious, I'm sure Tolkien would tell you the same.
I guess the problem is you are too sure of yourself.
I mean... We all know that Tolkien was a tinkerer, he was trying to make everything fit together as the world grew and was enrichened. Which is why I said that Bill and Bert and Tom don't really fit into the latter, more developed Middle Earth, for some of the reasons you've touched, I understand that.
It's just, your reading that Orcs are some allegoric Alfa-preditor of our society is a bit much really.
EDIT. I do enjoy your speculation though, so please take no offence!