They're killing theirs too but they're too dumb to realize it. Supposedly they care about the environment but that's not exactly going to benefit by having millions of people moving into the US every year and many of these people don't care anything about the environment. In Europe and other places, women are forced to wear burkas and live like chattel and European feminists are amazingly silent on that.
I believe that many leftists are indeed suicidal depressives, but instead of having the decency to just kill themselves, they try to drag us normal people down to their miserable level.
However, some responsibility does lie on the American population at large. The citizenry has become so lazy, so unpolitical, so apathetic that as long as they have their football, television, and unlimited internet access (Minus Conservative sites, of course), and if the problem isn't directly effecting them, they don't seem to give it a thought.
Have you ever wondered why there are very few midwesterners posting on the immigration threads? It is because, by and large, the problem in their region (minus Chicago and a few other cities) hasn't become as large as it has in other regions of the country. They, for the most part, still see an America of the old days. In my opinion, the Heartland is very out of tune to this issue. Yet, the Heartland's support is pivotal in dealing with this problem. We know that the northeastern liberals are too busy talking about diversity to want to do anything about it. I'm talking about politicians and most of their citizens.
As it now stands, this issue needs to command more broad scale support, more than what it is currently receiving from southwestern citizens, as well as a sizeable number of citizens from the south and northeast.