To the degree that those crops are protected against some 10,000 insect predators and weed species, we can thank pesticides and herbicides. Beyond that, countless studies have been undertaken to demonstrate that there is no proof that their use poses any threat. Well, for one thing, virtually every plant and tree produces its own pesticides to ward off predators. Everything we eat by way of fruits and vegetables contains tiny trace elements of chemicals that, in larger quantities, would kill us. Potatoes contain arsenic.
Peanuts contain aflotoxins.
The list is a long one. Greens simply don't care if what they say is bogus nonsense. Bear in mind that Greenpeace, last year, engaged in the same shameful scare campaign about plastic. So shame on Consumer's Union and on Greenpeace. How much exposure is involved.