Those insecticides are toxic to humans as well, many are proven carcinogens, and their residues stick around for years inside homes
But even if that wasn't so, insect populations worldwide are plummeting, and the entire food chain depends on them. Most plants and animals could not exist without insects, period
Keeping the insect ecosystem in balance is important for human health and long term flourishing. Not all species are impacted equally by these toxic chemicals, and the elimination of one species can cause an explosion in another.
For example, some of the major predators of ticks are ants, spiders, and beetles
If you kill all your ants, spiders, and beetles, it'll take a long time for them to re-establish, but ticks can return because of a feral cat walking across your grass
What's more, scientists have found that excluding animals from an area makes the amount of ticks that can be collected in that area to explode. We're talking 2-3 times the amount of ticks actively foraging for things to latch onto. It seems like hungrier ticks seek food sources more and bite people more. This leads to the hypothesis that global defaunation is one of the causes of the explosion in tick borne diseases in recent years
Many birds depend on insects for food, bluebirds specifically eat a ton of mosquitoes
If you wipe out most arthropods, the the small mammals and birds that eat the bugs will visit your yard much less. Guess what that means
Current projections predict that the insect declines will be heavily impactful upon bees, butterflies, and moths, but could increase the populations of...flies and cockroaches.
Not to mention that as all the natural predators of agricultural pest insects suffer, more and more pesticides will be needed to get enough crop yields and it becomes a vicious cycle of poisoning the planet and farm laborers more and more severely to avoid collapse of food systems
Your neighborhood association is creating a bleak, sick, hungry future for those kids and everyone else.