Neonicotinoid are just analogs of nicotine but with less affinity for mammals aka less toxic(higher LDL). If you’re worried about the effects of nicotine(eg: cancer,ADHD in kids), don’t eat anything from the nightshade family like eggplants, potatoes, peppers or tomatoes. There’s more nicotine in your mashed potatoes than neonicotinoid residue on your vegetables.

Beside the point you were making, but is there an established link between nicotine consumption and cancer, without smoking? What do you mean by "effects of nicotine - ADHD in kids"?

he means vaping makes kids less compliant and listen less to what hes saying

I couldn't find any source to confirm that acetamiprid is naturally in nightshade. If you know of any for this specific compound, would you please link them?