1) Saying that spreading potentially invasive is acceptable if it isn't intentional is comparable to saying manslaughter is excusable because there was no intent to kill (I don't mean that it is an equal crime, it is not, but it is somewhat similar).
2) The point about the evolutionary game just shows how ignorant you are. Humans accidentally (or intentionally) spreading a species somewhere it shouldn't be is a problem. In my mind, if that species then wipes out native species in that area, that is no longer a matter of natural selection. It would be our fault, our mistake, so we should try to fix it. On the other hand, if that species spread there without "help" from humans I don't see that as much of a problem as it occurred naturally (though if it was due to something like climate change you may be able to argue that humans are somewhat responsible). I do understand your argument, however, in that a species has lost the evolutionary game if they are unable to save themselves from human activity or an invasive species, but I stand by my opinion.
1) Ok, I agree with your first point, I was joking.
2) You're talking about humans as of some unnatural thing that came out of nowhere and is responsible for everything that is happening on this planet...
Well humans are also part of nature - we're not aliens who invaded the earth, we also are a part of natural selection, part of evolution on this planet.
If we can do what other living beings can't - doesn't mean we are not part of nature and that spreading invasive species is also not part of natural selection. Natural selection created humans - humans spread species - invasive species wipe out other species - everything is natural, happened due to natural selection, as you can see.
The point I'm making is that you should be worried about environment, not because you wanna save the planet - but because you wanna save humans from the consequences of environment changes.
And that means that saving the environment, endangered species, trying to stop spreading invasive species - these are all selfish things done by humans. Caring about the environment is just another arrogant attempt of humans to control nature.
And that's why you can't call me selfish and self centered - cause what you're all proposing is basically selfish itself.