It is the theory which evolved between the living bodies being in the state of life. It was proposed by Darvin to prove his own theory of great Evolution. Do you believe in Evolution? If some scientists or a society is believing in that, then it is not compulsory for each of us to follow their path. That can be called laziness or otlerwise ignorance. Actually it can also be termed as lack of thinking abilities. I believe that this world have enough followers and listeners but a very few number of creators and thinkers.
Survival of fittest actually exists even now. Nobody is out of that maze and can never escape from that concept if there is any lack of resources for satisfying all needs. Sharing mentality is getting narrower day by day. "Live and let others live" phrase should become relevant under these circumstances for at least human beings. Society and democratic government will never entertain physical or economical monopoly. But I cant mention any thing about other modes of ruling system.
Always be self dependant and independant to keep youself alive in this brutal world. Otherwise you may be the next pathetic being to suffer like many others. Trust has become an illusion and help is an word that we can find in novels and literature. Can you see or forecast the end of humanity? Controlling your anxiety and thirst for comfort has become an impossible herculean task for human demons of twenty first century. Looking outside towards pleasure is accepted every where and self incarnation or definition is unknown to all. Can we change that destructive mentality?
As far as I am thinking, I can imagine. Ability to imagine is the most gifted thing on earth, which most of us are yet to be identified. The facts are not fact till they are properly digested or understood.So try to think and understand the underlying facts and feature of human life. Let us unite and realize the concept of "Live and let others live" and enjoy at least small sacrifices for your fellow beings.