RE: Red foxes (Vulpes vulpes) were introduced to Australia for sport hunting in the 19th century, but ended up being responsible for the extinction of several native species, including the desert rat-kangaroo (Caloprymnus campestris)
Unfortunately we are destroying the nature with our hands and facing these consequences. Rule of life is simple, if you go against the nature you will be in trouble.In an ecosystem, each organism has its role and purpose. Disturbing the balance of an ecosystem can be disastrous for all the living things relying on it. Same thing happened in Australia as you mentioned in you post.
but the government seems to be trying its best to get rid of it. It is legal to hunt it in all states, and even poison it, but the eradication of the species has still proven very difficult due to the fact that they are nocturnal, breed easily and don’t always eat the poison.
In my 2 cent opinion it's not a smart choice to poison red fox because in this way you can easily kill other animal
Yep, this is what we get when we interrupt the natural ecosystems that have evolved over a long period of time. It's best to not interrupt these anymore than we absolutely have to. And I agree with the poison, it's far from the best solution!