Killing 2,000 goats on Santa Catalina is a very logical act. The balance of nature is necessary for the survival of all things. When an "unbalanced" situation occurs--too many goats--how divine of mankind to step in and set it straight.
Using this same logic, we will notice the other "unbalanced" situation that is going on--too many people--and thus proceed in the same fashion. (Pity that the goats can't pull the trigger.) By reducing world population by 50%, I am certain that the "native grasses, shrubs and animals--such as fox--will be able to thrive." As Jane Goodall mentioned, it is "the arrogance of mankind" that uses one form of logic for animals and another for the human race.