> And now we’ve come full circle to the uselessness of this label.

No, we've come to a point where you've moved the goalposts and refuse to support an assertion you made by answering a simple question.

> Camels, horses, marsupials, elephants, cats, opossums, New World monkeys, and even Homo sapiens all evolved in regions different than where they are found now.

All of this seems to stem from you not understanding what "invasive species" means, and, apparently, refusing to just Google it.

Invasive species have to be introduced by humans and harmful to the environment. Some of the things you listed fit that definition and some don't.

But regardless, you haven't given any evidence that eradicating those things from their new environment would harm that environment.