Clearly you are bias from the title of the topic... and clearly you do not actually want to know the evidence in favour for paleo diets... you just want to insult people. So clearly I would be wasting my time answering your questions.
But I could be wrong, so I will give you a chance. Start a new thread asking tactfully and genuinely for the historical reasoning for a paleo diet and I will respond. As there is a lot of evidence that you ask for. But I have no interest in having an open discussion in a way that is going to degenerate into belligerence and name calling. This is antithetical to what this website is about.