Is it necessary in its native habitat either? If it's a pure pest, we should have no qualms about getting rid of it. That we haven't historically done that (exc

Is it necessary in its native habitat either? If it's a pure pest, we should have no qualms about getting rid of it. That we haven't historically done that (except for smallpox) isn't a good argument for not doing it, especially since the technology for making it easy is just now becoming available. You do have an argument about ecosystem cascades and food chain disruption inveighing against arbitrary extinction of pests, but we should evaluate these things on a case by case basis and not just assume that any species we eradicate is "load bearing". Many species aren't.