As ironic it may sound, hate does bring people together. Although we always seem to believe on the contrary. From our childhood we have been taught to spread love and that would bring people together. And I do not deny that it works to a certain extent also. But have you every observed that hate works stronger than that? Lemme show you how. Go back to the memory lanes to childhood and remember the first teacher you bitched about who gave you tones of homework or screamed at you for no reason at all. And then you noticed that others hate her too. How the common hatred of all people for the teacher became a bonding topic for all your friends. How you still enjoy the hate talk about a person behind their back. And sometimes people do have too much in common to discover when they meet. But a common hate is the reason enough for bonding sometimes. Even now the strongest of groups a not build by most common likes but the most common dislikes. It does work in a strange way and if you do think on a deeper level you will realize it to be true. Even as a country people will fight each other over the most stupidest things. But when it comes to hating the neighboring countries, they will all simultaneously and magically their own differences are forgotten.
I am in no way glorifying hatred, because the feeling is unhealthy in itself. But looking at a much wider perspective it is still necessary to sometimes make people come together. I hope this trend changes one day.