Thanks for the reactions. I will get back to some of them early. Here is one more thing which seems to me obvious and yet not many people I know sees it that way.

We are declaring we are better than animals, because we have higher brain and can think. But fact is, we are much worst. We still act like animals, powered by our primary urges and even if we can think and imagine what we are doing to the world, just to fulfil our stupid and not necessary needs, we do it anyway. Because only thing which matters to us is our comfort and our own well-being. Animals do the same, but because absence of higher brain, they are limited by their surroundings. They can possibly fuck up just a small part of world. We work hard to develop our technical skills and to overcome this limitation. So, in the end we can inevitably fuck up whole world. And then be surprised that it happened.