I agree with your second point (about overpopoluation) entirely, though Anna Eshoo (D – Assyria) passionately disagrees. Notwithstanding the overpopulation, though, white women are increasingly failing to bear even two children (replacement-rates). I hypothesise (and you may agree) that part of the trouble here is that we whites are like angel fish: just as they only grow as large as their aquariums will comfortably allow, we seem to reproduce only up to a sustainable level, whereas the brown peoples of the world breed like unchecked deer or lemmings, until they destroy their very habitats. Here again, you are right: that perverse behavior would be fine, if we sensibly confined them to destroying their lands and facing the consequences, rather than blithely inviting them to move along to destroying ours as well.