Australia has 'feral' cats, dogs, horses, camels, rabbits, foxes, cane toads, ad nauseum....all of which are open to 'culling'. It also has some of the 'most' unique animals on the planet....or rather...HAD some.
There IS no place for any uncontrolled introduced species in any environment.
Of course...that includes humans too....the species guilt of all those 'unfortunate' introductions.
The 'culling' can be more appropriately targeted at the human.....and some countries do that quite well, what with liberal gun laws, etc....
I have a cat.....but also have a sense of responsibility....she's not allowed outside at night [hunting time]....and is almost NEVER seen beyond our title boundaries....and 192 sq meters ain't big.
Idiot gun-toters aside, it is the responsibility of the pet owner to NOT allow their charge to endanger or impact upon native wildlife.
Similar legislation has been adopted in areas of Australia.....and yet some dickhead introduced a fox into Tasmania recently....and that state is in panic mode as the potential for damage is enormous.
If/when the idiot is found....he should be shot along with the fox[s].
Anyone who really understands the precarious nature of our ecological habitat should welcome 'introduced species control'.....and does.
By the way.....in the time it took to write this comment, several species are now extinct that weren't prior.