your theory is still a theory... even evolution still has questionmarks about it in case you "read". you asked two scientific questions which I replied to and proposed a theory which indicates that human were designed to walk on four, theories will always be theories. I can talk to you for hours on Marx's A doesn't equal A and no mathematician can prove it to be wrong or right.
so stick to scientific questions or else don't lose your temper!
Ah, the ever so popular faux-argument of "It still is just a theory". It expresses no more than a lack of insight in what a scientific theory trully means. Of course the theory of evolution, like the theory of relativity is in a way, just a theory. But for ppl from your background this automatically entails that this is no more than an unproved belief, which can be replaced by any alternative "theory" out there. Like the theory of genesis. But these two meanings of theories are being unjustifiably equated.
A scientific theory is more than just a presumption. If it holds truth it explains a series of facts, coherently and is also entwined with several other theories from other scientific fields. For example: theory of evolution is linked to chemistry, paleontology, geology and many more fields. If the theory of evolution would be so wrong, like you claim, then all these other fields have to be wrong too. Which is not the case.
Of course there are still unsolved things in science. But instead as taking that as proof that everything must be wrong, science does whatever it can to fill in the blanks.
Your pseudo-scientific view focusses on an isolated presumption and takes that as evidence that the entire theory is flawed. Which proves a severe misunderstanding of scientific theories as a whole.