Humanity , Racism and Individual

After the ending of the war, racism, Sri lankan, humanity are so commonly spoken words. So, is speaking about ones own race racism? The common approval by the higher authority is to think as Sri Lankans and not as individuals from what ever the race you are born to.
Is it bad to think as a race, why is that? If we identify as a hierarchy

Individual
⇓
Family
⇓
Village/Town/Province
⇓
Race
⇓
Country
⇓
Species-humans
⇓
"Earthlings"- living beings from earth
⇓
...

It goes for ever till it reaches the point defining whether we are matter or Energy. So now is the problem identifying ourselves between the 4 ^th or the 5 ^th node? How about the others? So if we are always going to identify ourselves as Sri Lankans, are people in other countries something very different from us? Why stop at that specific node? What is the specialty. It is true that we have some differences in each country, when it comes but what is common is higher in extent than what is uncommon.
It is believed that civilized societies are rejecting cannibalism. But eating other animals flesh is not rejected at all. In the contrary: its encouraged(at times). The tigers(4 legged) do not eat their own flesh but other animals. What is the difference between us and the other animals. We do not approve eating human flesh only because its is of our own species. Humanity is spoken only because we are in the human species, so what about the other living beings. What is so different between us other than the other animals. We speak about humanity as if it is the best thing, only because we are humans.

Finally it comes out that we are just some self centered creatures. We start thinking from our selves and try to go up the hierarchy to some level. Some stop at the level of the individual, they are selfish according to others. We love our country, our school , our species only because we are in it. Not for what they are. Therefore all of us are selfish, the difference is how much space and thinking scope we try to define as our selves.
People cry when their loved ones passaway. How much tears are actually shed for what the dead person has lost and how much is for the loss of the 'crying person'. Are we crying, because the dead person has lost some thing or because we lost the dead person? Would we cry the same if he/she had not done so much for us. We are self centered to the extreme. Racism or Humanity or the special affection for the people of the same village; what ever the point we stop at is based on us being in that group, not the specialty of the group it self.
Humanity, racism just depict the points at which most of the humans reach their limit of thinking scope. A reason to specifically identify an individual to either group is not clearly defined. If it is not good to introduce them selves based on the race; it is equally bad to identify them selves as a person of a particular country as well. The reason for categorizing people based on country to be superior might have been the earlier difficulty in traveling between countries(specially if you are in an island). And the differences in environmental conditions might have made us look bit different from each other.
Finally what ever the category of organisms you try to fit your self in to, it could be concluded that we are a selfish group of beings only interested in our own survival and the support services for that survival .The importance of the group is entirely dependent on the difficulty in isolated survival.