Billions? There may have been billions of humans throughout all of history, though in the early stages, there may have been a grand total of thousands or tens of thousands of a particular sub-species of human. Only a very small percentage would have ended up fossilized. What's this obsession with complete skeletons? If a skeleton is missing a leg, does that make it somehow useless?
Now even in the transitional "theory" there should be plenty of co-mingling of the "apes" and "humans".
First, humans are apes. Second, by mingling, do you mean human sub-species should have mated with gorillas? That's just absurd. Sure, humans and gorrilas have a common heritage, but we're different species, why would we mate with one another?
There is evidence that homo sapiens mated with homo neanderthalis in Europe, however.
Yet we "humans" lock many "apes" up in zoos and steer clear of those yet in the wild. Talk about a need for revenge, if what the "E's" claim to be true those "apes" might catch up with their relatives.
This rant makes no sense whatsoever.