Actually toxicity depends on the dose. The initial explanation about 'everything is a chemical' was to address chemophobia. My point is if we have control over the chemicals that we consume, it is perfectly alright.
We always meddled with the food; that's how we got high yielding crops, well producing animals etc. We nurtured whatsoever we found good. Almost all the fruits were less sweet and tasty. We overgrew the better ones that gave pleasure to our taste buds. As a result, now those species dominate over the lesser tasty ones.
We have to continue meddling with the food. Otherwise availing nutritious food for the ever exploding population would be extremely difficult.
RE: The Organic Fraud