Directly to my point.
The are far more people now the planet and its biosphere can sustain. Rules that prioritize human life and material welfare among all other things, and especially nature, contribute to worsening of the situation.
Here is a video to firm my words:
http://www.youtube.com/watch?v=F-QA2rkpBSY (there are 8 parts).
There is no fundamental difference between human being and an animal. Strong sense of division between humans and other animals is the instinct based on principle of friend or foe. So this sense is natural and
animal.
Views saying that there are fundamental or serious difference between human and animal can be considered as kind of xenophobia. And they are (and that is a fact) foothold of all real racist and xenophobic theories and doctrines. Be it of political, scientific or religious origin.
Now, those laws, which I've mentioned.
Everything dies: people, civilizations, species. You can argue that species and cultures evolve, but it doesn't matter - human aging and death can be viewed as evolution of a system.
You can't take without giving. To do anything at all you have to move. To eat you have to work, or to hunt, or whatever, spending those energy and health that you have gained from eating before. If you choose not to move, to became motionless, then your body will degradate and die.
Death itself is an event of giving back what you have taken when came to life. This is well-known philosophical and religious concept.
Life is a motion. And one of the characteristics of a life system is metabolism, which is really a process of giving and taking. It is applicable to macro systems too. Gaya hypothesis is not without a basis. Organisms altogether do the same thing - they take from the environment, and they give to it.
Another characteristic of life system is homeostasis. That is, in the process of giving and taking smaller life systems maintain a constant state of larger life system which they are part of. And this is exactly an example of natural balance or equality.
The larger the group you belong to the weaker are you. It's literally. Small society, an aborigine village for example, depends more deeply on every men they have than huge society, e.g. megalopolis. In huge society you have tools, you have specialist and luxuries that allow you to be motionless, and so degradate your body. You don't have to walk, if you have a car or moving staircase.
Also the larger is a group the faster it dies. Because you can't take without giving, and large groups take a lot. The more cockroaches on the kitchen the faster they annoy the householder to the level he'll call exterminator. When locusts eat every blade of grass they'll have to move or all of them will die. Where will humanity move in similar situation?
See theories on how
ancient Maya,
Khmer civilization and
Easter Island population banished as examples.
Your life depends on creatures some of which you've never met. And that is not those poor cows. It is about ecological chain. You probably know about the
Great sparrow campaign. That is a perfect example here.
Some picture:
You or your group can't always be a winner.
For every action force there is an equal, but opposite, reaction force. If you constantly win, sooner or later it will violate one of the previous laws, and you'll loose anyway. There are examples in history too: Rome vs China. Roughly speaking, Rome was constant winner, and China was constant looser. But Rome have collapsed, and China is still there. And why Rome collapsed?.. Largely because of Great Migration. And because of whom it happened? And when and where are Huns had came to Europe? - From Mongolian Steppe after Chinese built first parts of the Great Wall...
So. If Rome had not exterminate every power in its neighborhood, it would have enemies during its late history and so a motion or muscle stimuli, it would also have allies when Huns and Vandals come. If Nomad tribes of Central Asia had not oppress China so hardly, Chinese never unite and build their walls...
PS: Which cells in human body do not die, take without giving, grow to a larger and larger group and damage other tissue?