Most, though not necessarily all, aliens from Mexico are not coming into the country to have a second Reconquista (the first was the Spanish driving out the Moors).
Get a grip there, pocket monster, before folks start believing you're one of the paid pundits here who seize every technical error in a death grip while leaking clues that they weren't raised in this culture.
Everyone here knows that the Alamo was about Texas and Mexico - while the larger story was about the United States not sending support in a timely fashion...seems the same old "wait until it's too late" solution was as popular then as it is now. What's important is that the phrase "Remember the Alamo" has been a rallying cry adopted by this country whenever seemingly insurmountable odds need to be confronted with force of will.
Whether or not "reconquista" is anything many aliens from Mexico think about, very many of them do in fact believe that the Southwest belongs to Mexico. This fact plays very strongly in their opinions of the U.S. and their right to be here in spite of our laws.
Border states need to send in the national guard to stem the flood of illegals slurping down free, taxpayer funded social benefits.. The rest of us need to find the eleven ferral Egyptians gone missing and gone wild.