How Did We Manage to Poison Our Food Supply?

I’ve written on nutrition extensively, including and especially magnesium. But it’s just one piece of a huge puzzle.
But is it really a puzzle?
Or is it becoming obvious that people are being poisoned on an industrial scale.
Meanwhile, one symptom, one diagnosis, one drug. Nice mantra, and supremely profitable for Big Food, Big Pharma and the whole medical industrial complex.
That is, highly processed, addictive, slow poisons for the population based on chemical laden plants and animals. The best business model ever developed: slowly, deviously, profitably poison the populace, thus guaranteeing high levels of illness, then treat forever with... see prior paragraph.
Is it glyphosate a key factor as Dr Zach Bush posits? Well, if you put poisons in, and strip nutrition out, something’s got to give. You cannot even breathe air free of toxins any more, so all you can do is seek out the healthiest food possible eg, one ingredient, prefereably organic (which doesn’t mean a lot but it might help).