Our caveman ancestors were Liberals. How do I know this, you ask? It's quite simple really. All you have to do is postulate the conservative caveman response to life-threatening events based on the current conservative mind set to see that - left to their own devices - conservative cavemen would have gone the way of the dinosaur, driven relentlessly to extinction by the very forces of natural selection they so vehemently deny exist. Let's take a look at some of these responses:
CAVEMAN RESPONSE TO IMPENDING ICE AGE:
Liberal - deal with reality, move to warmer climes, develop warmer clothing and shelters
Conservative - deny that it was coming, refuse to change traditional lifestyle, disparage others attempting to warn them
CAVEMAN RESPONSE TO WOMEN'S RIGHTS
Liberal - fully integrate women into society, leverage women's gathering skills to supplement diet through gathering of plant materials, leading to greater health, fertility and chance of survival
Conservative - keep women in the cave, dismiss gathering as "women's work. Resulting lack of plants/vitamins in diet and prevalence of "hunting dry spells," results in weaker population, constipation (a hallmark of conservative culture in any case), decreased fertility and periodic starvation. Sabretooths take note.
CAVEMAN RESPONSE TO OVERHARVESTING/GATHERING OF NATURAL FOODS
Liberal - deal with reality, develop alternate foodsources, institute conservation, develop agriculture
Conservative - deny shortage, continue to overharvest while proclaiming that "Ungowwa" (Caveman for "the lord) will provide, and abandon starving segments of population by reasoning their starvation is their own fault for being lazy, different, hazel eyed, etc. Sabretooths grow accustomed to hanging around conservative camps to pick off dead and dying.
CAVEMAN RESPONSE TO CHARGING MASTODON:
Liberal - get the f**k out of the way
Conservative - deny threat or refuse to get out of the way of the decidedly inferior creature Ungowwa has given them dominion over
CAVEMAN RESPONSE TO DIFFERENT (HOMOSEXUAL, ARTISTIC, LIBERAL) SEGMENT OF POPULATION
Liberal - acceptance and integration of differing skills and perspectives to enhance quality of life and survival chances
Conservative - ostracize and drive forth subversive elements, leading to loss of vital genetic diversity, needed skills and warriors needed to defend tribe. Resulting genetic drift leads to worsening of pre-existing mental/physical impairment in population, and lack of warriors leads to tribe being attacked and eaten by hungry sabretooths (that had already grown accustomed to close proximity with foolish conservative encampments)
And there you have it - similar regressive and ultimately pernicious responses to other threats can be postulated. Our ancestors were therefore decidely Liberal, as Conservatives simply would not have survived. So, before you disparage another conservative as a "caveman," or "Neanderthal," please consider the disservice you do to our caveman ancestors and simply refrain. After all, these days, "conservative" is insult enough...


