Paranormal is a last resort for me personally, and is reserved for when I see one walk into a worm hole.
Geographicly, I see no reason they couldn't live anywhere a coyote can live, and I think the evidence is equal in most states they are reported in. I don't cherry pick acounts to make my hypothesis more palatable, but I think you have to.
You had tried to make a point that people aren't prosecuted for shooting or killing bigfoot. My point is that if they are a human relic and live like an animal, it's the last thing law enforcement, fish and game, or your local university wants to prove, because something would have to be done about it.
If these things were just a bipedal gorilla, they'd be on every mountain hunters wall next to their prize grizzly. They aren't and there's a reason, what is it?