Here is my question... why is everyone happy about Obama being the first black president of the United States?

Cos in my view he is only black in colour... he was raised by a white mom, white grandparents and lived the classic white man's life... not a black person's life... you see what I associate with a black person and how he comes up in life is that he and his family have overcome years of discrimination and then got to a point where a hardworking father/mother puts their son/daugter through college... I am not sure whether Obama has these issues to live with ... he was ofcourse half black and that might have subjected him to some form of discrimination... but was he living the life of a black person? I think not....