Humans are run by their own biases.
We humans have our own biases in religion, ethnicity, township and nationalism, leading towards conflicts and intolerance. These biases are either self-created or inherited from the previous generations.
Biases make people think that they are superior to all others. Jews think they are the God's favourite hence they perceive others inferior. Likewise, white people think they are superior to blacks. These views are nothing but biased arguments. But what exactly does a bias mean? It is one's extreme views—positive or negative—towards anything or anyone.
I live in Sargodha and if, for example, I say Sargodha is more beautiful than Swat then it would be my biased argument either because I love Sargodha or hate Swat. And many of you would laugh and disagree with me because you do not have such biased view as I have. But if I say Infront of bunch of Muslims that Makkah is more beautiful than Cape Town or Sydney, all would appreciate and agree with me because they all have their positive bias towards Makkah. Otherwise we all know that Makkah is no way more beautiful than Cape Town.
Negative religious biases make people think a particular religious group is hateable and should be wiped out from this planet. It is on this ground many Muslims justify the jews' pogrom by Hitler, saying he was a hero because he killed millions of Jews, while condemning the atrocities done by Netanyahu and Modi against Muslims in Palestine and India respectively.
If such biases do not exist, humanity will survive in the long run. When people relinquish their biases, they start thinking rationally. Hence, we all should think rationally rather than creating our biased views.