To try to be nice is to rally against nature itself. If you strive to be nice then you are automatically at odds with the driving force of nature. You want to make the world a nice place? Then by definition there can be no losers and if there are no losers there is no evolution. If there is no evolution, there is no life, only a slow descent bck to maximum entropy. So the ultimate question is not "do you want to be nice?" but "do you prefer life over non life?". Is the pain of existence worth it? some say yes, some say no, both are valid opinions. Personally I say yes. But I wouldn't blame a person for being anti life and working actively to destroy it.