Semantics?

Obviously I don't understand the meaning of the word 'illegal'. How is it that people can come here and demand that we change our rules to accomodate them? To do that would be an affront to all the people who actually got their status legally - myself included. What am I missing? I've been listening to this debate for the past few weeks and I still don't get it. And as for this wiretapping business, it totally blows me away. B.ush says "we know what's best for you." WTH? 2400+ military men and women killed so far, uncountable injured physically if not at least mentally, no diplomacy with respect to international relations, and playing big brother with our lives - citizens of the United States! Do we live in a dictatorship or a free society??