Please stop with the 'we are a nation of immigrants'.  No one has forgotten that, despite the ad nauseum repeated statements to remind everyone.  However, we are also a nation of laws, which are being ignored for the advantage and use of certain groups.  And stop comparing the 1800s to today, they are not the same, not by a long shot.  If you want that style of immigration it also means no welfare/support/help of any kind by the government to any new immigrants, which Im sure the same people against limiting immigration would be against as well.  We, the citizens, get to decide our immigration policy and it should be what we feel is in our best interest.  And I great many of us want it cut back for a while to deal with the undeniable massive influx we have over the past 40 or so years.  Especially with it being overwhelmingly from one demographic rather than an actual mix of peoples.