Mosquitoes are responsible for millions of deaths every year, and hundreds of millions of infections often with severe disability. We understand stuff pretty deeply now. According to https://www.nature.com/news/2010/100721/full/466432a.html eliminating mosquitoes would not cause major ecological issues.
So when you have millions of people dying every year from a cause on one hand and only vaguely specified fears of some nebulous future harm, the reasonable and ethical thing to do is to do what you can to eliminate mosquitoes.
Mosquitoes are responsible for millions of deaths every year, and hundreds of millions of infections often with severe disability. We understand stuff pretty deeply now. According to https://www.nature.com/news/2010/100721/full/466432a.html eliminating mosquitoes would not cause major ecological issues.
So when you have millions of people dying every year from a cause on one hand and only vaguely specified fears of some nebulous future harm, the reasonable and ethical thing to do is to do what you can to eliminate mosquitoes.