(CNN)The world's most listless and impotent -- err, "greatest" -- deliberative body shelved further debate over the future of DACA more than three weeks ago, after senators voted down four proposals, one of which didn't address the question at all, over the course of about an hour. Even with a pair of court decisions delaying its expiration date, which was supposed to hit on Monday, the Obama-era Deferred Action for Childhood Arrivals program is now rolling downhill to collapse. Nearly 800,000 undocumented immigrants, brought into the country -- the only home many of them have ever known -- as minors, will over the coming months, or weeks, lose their shield against deportation. Some already have.