We need insects – they are pollinators, important in the life off our soil and part of the food chain for other wildlife.
The loss of so many due to climate change will eventually affect the food chain. There are no chemical replacements for so many things that insects do. A chemical will not pollinate crops but insects will. A chemical will not improve the soil in the way that worms and other bugs do as has been shown many times.
It’s a thoughtful article and worth the time spent reading it