Why should we hate others.... we need to spread the love
Personally, I don't like making grudges with other people because it wouldn't help you one bit of something, it would just make you angry compared to loving one another. Definitely it's very hard to love your enemies but maybe you could do something that is worth for others to know that you care.
Yes besides who will suffer if we keep on being angry? It is not good in our heart if we keep hatred. Basically we have ups and downs in our lives, maybe the person that we have become enemy were just having a hard time in life. As per our Muslem brothers, as long as they are good and not hurting us it is fine. I basically know some Muslem and they are really good and such lovable people. Terrorist are mere sicked, they are using this religion to execute their killings.