You would be wise to recognize that there are two sets of facts, the facts that you use and the facts used by those that create legislation and policy. You would also be wise to recognize that political rhetoric is not fact and is only being used to fool you.
You are like many. Given the facts as you know them, you can not understand why Congress does what it does. Because of this, you can only conclude that it is a sinister plot to destroy the nation. Immigration reform is a plot. Totalization is a plot. SPP is a plot. The highway is a plot.
You would be wise to seek out the real facts.