@Walter Hinteler,
Walter, we are getting off track (I don't want to argue just to argue). Let's figure out exactly where we agree and disagree.
It is OK for you to agree with me when I am correct... it doesn't take away your right to disagree on other points. Part of the problem here is that people get stuck in their sides and have to be all right or all wrong without the ability to accept when the other side has a point.
So tell me which of these things you agree with (or disagree with).
1) Modern agriculture including synthetic fertilizer and man-made pesticides greatly increases farming yields, decreases the use of land and water to grow equivalant crops, and makes food more affordable and accessible. (You can agree with part of this and reject other parts if you would like).
2) Modern agriculture, including synthetic fertilizer and man-made pesticides can have significant negative impact on the enviroment and on human-health (particularly for farm workers).
3) Organic food is more expensive, and more volatile (crop yields vary from year to year). This causes a problem outside of first world, wealthy nations.
4) We now have a global food supply that depends on synthetic nitrogen fertilizer and man-made pesticides. As a planet, we need to ensure that 7 billion people have enough food to avoid hundreds millions of people dying from starvation (as has happened in the past).
5) There are reasonable things that we can do to make the environment healther and protect farm workers without putting the global food supply in jeopardy. Often these require government regulation (hopefully backed by good science). We should do these things.