The problem with individualism is that you'll fall before the combined might of collectivists or unite against them and prove their point.
To put a more positive spin on it, a purely individualistic worldview can be unfulfilling for some. I never had motivation problems or a lack of success. I clawed my way from the gutter into a middle class life, with more vacation time a year than most get, multiple hobbies, got married and somehow managed to avoid all the marital problems that most couples experience. It wasn't until I started a family, and reached out to people of like mind and cultural values for an anchor in the sea of clashing culture that is Current Year America, that I felt like part of something greater than myself, and met people other than myself and my wife I'd trust to watch my kid, and that I'd do the same in turn for.
It was the difference between feeling satisfaction in the now, to the joy of being able to reach out and share that with others, in a network that will outlive me.
I thought I'd lost that feeling doing charity work overseas and watching the locals stealing the infrastructure built for them for a quick profit or selling their prepubescent daughters for trinkets.
There are other ways to achieve it, but ethnic pride isn't a bad method, all in all. Religions, ideologies, and creeds of various sorts can work too. I prefer something with a more material component, though, just from a personal standpoint.
It doesn't even necessitate hating other races. There's a black nationalist I know. He wants the best for his community. Wants it to improve and stand on its own without young black guys shooting each other over drugs and young black girls having five different baby daddies to get child support and benefits. He wants black communities to stop being dragged along like a donkey with a carrot and a stick by political puppeteers. I respect that, and wish him well. He's mentioned feeling the same way about me and mine. We don't want anything to do with each other's communities, but we don't wish the destruction of the other.