Let me answer. Some folks that are able to see what's going on are getting angry. This invasion of millions has been going on for many many years. And year after year the politicians and our so called leaders either ignore this, or actually encourage it. When I see my country being over run by these millions, I have a tendency to become angry at our leaders.
These illegal are breaking our laws, defecating on our sovereignty, murdering our cops, bringing in drugs, choking off our social services meant for citizens, taking jobs, driving down wages, driving up taxes, etc.....
Are you starting to see why some that care for this country are not just happy sitting around and discussing this in a quite, relaxed manner? Look at my screen name.. It sums up what millions of other American's feel.
I voted for Bush knowing that he was not destined to be a hardliner on immigration like Buchanan or Malkin. I don't think it's a stretch to assume that I'm not the only Bush supporter who knew what he getting when he cast the vote. I'll agree with you that a large number of people are upset about the immigration issue, but I think you should equally concede that a lot of people are not.