Any sincere environmentalist would also oppose the present massive immigration to this country. For example, their own studies have shown that we use up nonrenewable resources at a faster rate than Third World Countries.
As to illegal immigrants -- this is not a liberal versus conservative issue. Every normal, law-abiding, and patriotic American should be against these criminals infiltrating our country and now even demanding special perks.
What about the ones who don't demand "special perks?" Can they stay? How severely would you classify the crime of illegal immigration? Is it better or worse than dealing drugs? Should we deport all drug dealers?