When significant expose campaigns are put together about what is happening to and at our borders, and the resulting societal threats posed by it, it will take down the party that fights it...or does nothing. We won't see the days of both parties doing nothing or we will indeed see the wrong people elected that WILL complete the totalitarization of America's big brother state.
We have to find an effective way to protect America and not lose it to the Globalists, the Muhammadans, the DemocRAT Communists or the Latino invaders - or what Constitution will we be defending before too long?
Talk about our Constitutional rights in one hand while the enemy incrementally cooks our frog, slowly but surely, until we are weak enough to be finished off...
"Social concerns" aren't considered as important enough to give a license to kill people looking for a job. Americans won't ever bite that bone, sorry.
"Security concerns" may be considered important enough, though. It's not viewed as a security problem now, and until it is, don't expect any serious change at the border.
And in any event, don't expect US soldiers gunning down people. I can't imagine many right thinking troops would go for that, and most would quit in time.