The first two NOs are correct but the third one, even if also true, worrying...

We can live in a world of fewer species, provided we keep the ones that matter to us?
How can we be sure we'll be among the survivors?

I myself wouldn't call them "correct", in another clip I just upped, it claims the possibility of the loss of a million animal species. When there are extinctions, it is usually the larger of the creatures that are most noticeably effected, as they are dependant upon the smaller ones. As for life bouncing back? Yes, but that takes a looooooong time, something a hundred generations of humans are not likely to see.

Call me pessimistic.