Why are Indians so negative about their ownselves??

Why are Indian's so negative about India all the time? Some say India is not ready for F1, some say Indians cannot be good at team sports, some say Indians can't be good coaches, some believe we will never be a developed country, some say Indian's can't make good movies.... Are there any other people in the world, who achieve so much in such a short time after 200 years of servitude and are still so negative about themselves?

Maybe it serves us well, maybe this negativity is good to keep us in check. There are many maybes which could be good for us, but I just wish some of the negativity could be channelized into something more productive.