I'd argue that this is partly a philosophical argument: what do we mean when we say “the wild”? None of the feral animals listed, with the possible exception of

I'd argue that this is partly a philosophical argument: what do we mean when we say “the wild”? None of the feral animals listed, with the possible exception of feral pigs, could survive if humans hadn't killed off the major predator species. There are wild cattle where I grew up, cows that escaped one of the local farms. But there are no wolves or mountain lions, which in a true natural state would, I suspect, would take them down in short order. So to be generous to the OP, he might have a point.