In recent years there is a trend of culling by killing non native species.
Possum's in New Zealand, Rabbits in Australia and Grey Squirrels in Gt Britain.
Attempts at wiping out native populations by non native colonials occurred in America where the indigenous Indians were slaughtered by the millions.
Australia issued licences to hunt Aborigines recent as 1908.
Fr. Felice Vaggioli wrote a book about The British treatment of Maori which was banned. An attempt to wipe out New Zealand Maori was almost successful.
Efforts were also made to eradicate the Irish by the British = Scots Welsh English known collectively as WASP's. White Anglo Saxon Presbyterians.
When one has a WASP infestation what do you do, seriously, what ?
Therein lieth the solution to the US problem if you answered correctly!