Yep ... and religious ideologies are behind sexism and racism. So with all the religious sects out there - people will just fight over those differences. Like the MidEast does now.
LOOK TO YOUR OWN NEST. I think you will find more than enough excretia in your own back yard. Don't worry about people you will never know anything whatsoever about.
Don't worry, there'll still be plenty to fight about then...
Rich vs poor Educated vs Uneducated Fat vs skinny New York vs Chicago Harvard vs Princeton Coke vs Pepsi Meats vs plants Organic vs synthetic Above the knee vs below the knee NBC vs FOX Who vs whom Pepperoni vs anchovies Plaid vs polka dots
Ok, I'm being a little facetious and hyperbolic but the point is people will ALWAYS find SOMETHING to FIGHT ABOUT!