The principled argument is holding out for a wall that will release illegal border crossings and drug trafficcking by 95% (as it has in every other part of the border where walls have been built.) And preventing the victimization of tens of thousands of Americand and legal resident immigrants, who should never have been here in the first place.
Democrats have no principled argument for opposing Trump's 5.7 billion for a wall (that the cost of Democrats' shutdown has already far exceeded, what could have already funded a wall).
