Stop using pesticides. Gardening uses more chemicals per area than farming by at least an order of magnitude, as people don’t care about cost. It’s not something that will solve everything, but it’s a thing you can do, now.
That. Though I'm very skeptical about the rest of your message. Do you happen to have any source by chance?
And also try not to buy (or at least avoid it as often as possible) products that come from those that use pesticides to reduce the impact of farming.
Similarly, no-till farming has environmental benefits, but probably needs more herbicides.
That's not possible unless you grow all of your own food. And if you do you'll realize how much of your crops are lost to insects due to not using pesticides.
If enough people complained to the cities about the harmful effects of spraying, they may stop. Convincing agriculture to use less pesticides would be much harder and likely involve powerful lobbies at the state and federal level.