Invasive pest species are destroyers and governments have the ability and the power to reduce and eliminate such species.
Fire ants, feral pigs, water buffalo, feral deer, wild horses, cane toads, rabbits, foxes, feral cats, camels, etc and etc. The list of animals is long and the list of plants longer.
But funding for action and research is cut and dwindled away. Australian plants and animals can recover and thrive when their environment is free of invasive species.