Oh, I agree with you 100%, and I'm just pointing out that people probably said exactly the same thing a few hundred years ago about living in 2000 (if they knew what it would be like), and likely will say it again in a few hundred years about living in 3000.
We have already been robbed of so much biodiversity in the last 100 years and it doesn't take much research to realize it. We should do our best to avoid depriving those generations ahead of us even more :(
I am just replying to a single comment, so forgive me for addressing everyone else as well as you here. I think it's very funny that people are making obvious replies to my comment to defend against (the also very obvious) observation that perhaps being born and dying in a tin can on another planet might be an undesirable fate for the vast majority of the human race.