Even a common rat caused a number of species to go extinct in NZ. I can't imagine any conservationist would agree that we should let a common rat kill off dozen

Even a common rat caused a number of species to go extinct in NZ. I can't imagine any conservationist would agree that we should let a common rat kill off dozens of incredibly unique species of such a one of a kind ecosystem, just in case the rat has a net positive effect in the long term. Now that is hubris, what the hell do we know about long term net positives? Selfish warm feelings, while watching the reality of introduced extinction take place in a matter of mere decades. Pardon me.