As Antifa thugs take an ever-larger role in the siege of ICE’s Delaney Hall detention facility in Newark, it’s increasingly urgent for both the feds and Democrats to confront this cancer — because Antifa threatens them both. This movement is not about fostering progressive change: It’s about exploiting progressive causes to commit political violence in a war on all social order.  These are the masked, keffiyeh-clad radicals barricading a federal facility , threatening the families of law-