[dan-robertson]

I think part of this is that the idea can be unfamiliar and so people try to come to random conclusions or raise concerns that have already been considered (or they just disagree with the prevailing view). The search term for this kind of thing is ‘planned extinction’ and it perhaps won’t surprise you to hear that A. aegypti is the most common candidate. Another case is the (new world) screwworm fly which has been eliminated from North America and most of Central America by the United States (it being easier to try to control spread through Panama than from Mexico). There was a New Yorker article posted here a while ago about the elimination efforts. I’m not sure farmers in Colombia or the rest of South America would mind much if the species were totally eradicated.