[jefflombardjr]

I 100% agree with you. You absolutely "can't resolve this kind of debate by simply saying "foreign bad" or "foreign good"

Imagine we discover an alien planet with no predators. Should we allow ecological merging, with reasonable expectation of large biodiversity loss. The problem is, the alien planet doesn't have a pesticides industry propped up around saying "foreign bad"

But I have no idea, and am not qualified to answer that hypothetical.