One irony of this meme, which I believe is meant to play off others based on skeletons, is that "people who vote for Trump" actually have the same skulls as people who don't. But Occupy Democrats, a scabrous bunch mooching off the integrity of the Occupy Movement, feel free to toss inclusiveness (to say nothing of mere fact) under the bus for partisan purposes.
The other irony is that it was not Australopithecines but Homo Sapiens that invented nuclear weapons, poison gas, racism, Nazism, religion, antigay bigotry and all the other evils this meme attributes to our distant ancestors and Trump voters.