But perhaps you need to read a little more.  True, what you suggested is a prevalent hypothethis.  Equally true; however, is that recent discoveries in China support an origin of Homo Erectus in Asia.  And I suspect a lot of those with traditional Judaism or Christian beliefs will take issue as well.  Something about a flood as I recall.  But if you really want to get technical, all theories include a caveat that modern man evolved regionally. So, how far back do you wish to go to make the point?  

For that matter, what the hell does any of this have to do with whether a female chooses to see a particular type of male? This is an illegal activity, analogies to public venues (grocery stores, restaurants, etc.) are laughable, and what does anyone actually hope to accomplish here?  Okay - if ladies don't see a certain type of guy, then she is a racist, guys - if you only see a certain type of lady, then its okay because that is your preference?   Huh???  People don't like the word racism (I personally hate the words fat and stubby, but I am learning to deal with it.) The fact remains that by definition, racisim does exist - but often lost is the fact that it is a two-way street.  

Give it a rest folks, last time I checked, providers were not advertising their wares at WalMart.  And this is not the place to argue semantics over preference, racism, personal bias, etc.  

Besides, every guy here that has been at this a while has been turned down by a provider for one reason or another.  Sniffle, whine - lately, it woud seem there is a bias against those with handles of a canine species.  Now that is just wrong imo.