Is Eliminating Mosquitoes a Good Idea?

It's very rare for there to be a serious, a long term harm caused by eliminating one species from an ecosystem. Certainly nothing near the realm of half a million people dying every year. If we could use gendrive against malarial mosquitoes to save half a million lives per year, or even half of that, i would say we're morally responsible for all those deaths if we choose not to. I was literally just ahating manae o florsier, but now i have this idea that you're more morally responsible for the consequences of something you do, verss the consequences of thing that you choose not to do. That was kind of an, iplesit premise ind my