He doesn't give a fuck about anyone other than himself and PUtin, he doesn't give a shit about anyone else, including his base. His blase disregard or their pain if proof of that. That this isn't about a wall is plain by the fact that his steel slats failed, he definitely knows it, and still is insistent. This is about shutting the government to stop all the federal court cases against him, his family and his organization. It's about fucking up America economically, for Russia's sake. It's about hiding the Mueller investigation behind a cloud of smoke about "the wall". That's why he won't let the dept. go back to work who have actually had their funding approved through congress, he wants to totally fuck us over inn a huge way and prove how much he hates America to the hostile foreign oligarchs that fund him.