Swarms of squatters, rogue climbers and illicit BASE jumpers have descended on Yosemite National Park as the California site grapples with staffing shortages amid the ongoing government shutdown. Shocking videos on social media show throngs of reckless jumpers launching off El Capitan, climbers scaling Half Dome’s 8,839-foot cables without permits and hordes of trespassers taking over closed campgrounds — all in blatant violation of national park regulations, according to local reports. “It’s