If a species wasn't introduced by human agency, directly or indirectly, it's not invasive.  Take comfort in the fact that you're consistently wrong.  See, I've studied this stuff.  You haven't even read the citations you posted hoping to bolster your specious arguments, and WON'T rise up to the challenge of defending 'em.  Because you can't.  Pitiful when I understand your arguments better'n you do.  I'm not gonna do your work for you.  Either defend your claims, or slink away all butt-hurt because you can't.  Don't care which.