Your conclusion has merit.
But I tend to think that the MSM drives most of what gets attention. M. Jackson gets more air time that the influx of aliens from Mexico. What does that say?
Most of what happens in DC is driven by the MSM, even in the Bush administration. He does what he can, and is reshaping the military and some other things very skillfully, but aliens on the Arizona border are not even on the radar scope. You can only fight so many battles at once.
BTW - I used to live in NM.
Bush had done nothing, and a handful of Minutemen have now proven how easy it is to protect the borders.