Population increase-a myth or a reality

I DID SOME RESEARCH ON THE MUCH TALKED ABOUT TOPIC TODAY ‘POPULATION INCREASE’ AND FOUND OUT THIS:
Internet says the current (2016) population of India is 1.29 billion that represents 17.31% of world’s population which means one out of six people on this planet lives in India. Currently there are about 51 births in a minute in India.
Although the crown for the most populous country in the world is on China’s head for decades. But India is all set to take that crown from China. Census says that by end of 2030 the crown shall be ours.
But I am here neither to give the alpha and omega of population increase nor to point out its consequences. I am here to discuss the thought that was provoking my mind to rethink everything again and of course from the SCRATCH! So the question that was popping in my head is why we are taking into consideration only human population when talking about population increase or decrease. Should we not consider all living things as well when measuring population? Google dictionary defines the word ‘population’ as a community of animals, plants, or humans among whose members interbreeding occurs. So saying that population is increasing by taking into account only human population is completely incomplete.
Surveys say that human population is increasing at an exponential rate but what they have to say about the population of other species (like animals) which is decreasing constantly. Many of the species have become endangered (like dinosaur, chimpanzee, fin whale etc) and what about trees that are being cut in humongous amount to abode the increasing population. In 2012, the IUCN Red List featured 3079 animal and 2655 plant species as endangered (EN) worldwide. The figures for 1998 were, respectively, 1102 and 1197.
But also we come to know, every now and then, the discoveries of new species like The World Wide Fund for Nature (also known as the World Wildlife Fund) released a new report detailing the new species discovered in the Eastern Himalayas from 2009 to 2014. The report counted 211 new species, which comprise 133 plants, 39 invertebrates, 26 fish, 10 amphibians, one reptile, one bird, and one mammal. And from a previous report, the WWF notes that between 1998 and 2008 about 354 new species from the Eastern Himalayas were described.
One thing is becoming endangered other being discovered, one thing surging other declining. Is it not like a balanced chemical equation?
Something triggered?
Science says that energy is neither created nor destroyed it just changes its form. Are we not restoring one thing for another? I think the overall population is what it was before. Putting it simply, earlier there were no Homo sapiens only flora and fauna. Now when Homo sapiens are escalating we all can witness a correspondence decline in flora and fauna. Having said that I believe the population (taking of course in account everything) is constant what it was million years ago it is just changing its form which we, the Homo sapiens, say ‘population increase’. We should instead say “increase in human population”.
Difficult to digest? Why won’t it be after all it was my thought that was haunting me. Try to give this thought of mine a precious minute of your life who knows maybe it would haunt you even more!