California, the epicenter of the U.S. homelessness crisis, is cracking down on people living outside like never before, taking an aggressive new stance to dismantling and clearing homeless encampments in the wake of a watershed U.S. Supreme Court ruling in late June that makes it easier for government agencies to fine and arrest people for living on streets and sidewalks, in broken-down vehicles, or within public parks—even if there is no shelter or housing available.